{"title":"Black Friday Speed Engineering","description":"","products":[{"product_id":"speed-engineering-2016-camaro-lt1-lt4-2-inch-longtube-headers","title":"Speed Engineering 2\" Longtube Headers — 2016–2024 Chevrolet Camaro SS \u0026 ZL1 | LT1\/LT4 6.2L | 25-1061","description":"\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe factory exhaust manifolds on your 6th Gen Camaro SS or ZL1 are one of the first restrictions holding back your LT1 or LT4. Speed Engineering's 2\" longtube headers are a direct-fit, dyno-proven upgrade — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel for maximum exhaust flow and over 25 rear-wheel horsepower over stock. Speed Engineering X-pipe kit is required for installation and sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 2\" Port-Matched Primary Tubes\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LT1\/LT4 performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on 6th Gen Camaro applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.2L LT1 and LT4 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Camaro SS — LT1 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2020 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2021 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2024 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Camaro ZL1 — LT4 6.2L Supercharged\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2020 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2021 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2024 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is an X-pipe included with these headers?\u003c\/strong\u003e No. These are headers only. The Speed Engineering X-pipe kit is required for proper installation and is sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between these headers and the 2\" full kit (25-1061)?\u003c\/strong\u003e The full kit includes these headers plus the Speed Engineering X-pipe, header bolts, MLS gaskets, and O₂ extension harnesses. These headers include just the headers themselves. Choose the full kit for an all-in-one purchase; choose headers only if you already have or plan to source the X-pipe separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between these 2\" headers and the 1-7\/8\" headers (25-1046) for this platform?\u003c\/strong\u003e The primary tube diameter is the key difference. The 2\" headers deliver maximum exhaust flow for more aggressive builds with supporting modifications such as a cam, heads, or forced induction. The 1-7\/8\" headers are a strong choice for most street and performance builds across a broader RPM range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 2\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 6th Gen Camaro SS and ZL1 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the 6.2L LT1 found in the 2016–2024 Camaro SS and the 6.2L LT4 found in the 2017–2024 Camaro ZL1.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3)\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228083101744,"sku":"25-1061","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2016_Camaro_2_Longtube_Headers_LT1_LT4_Engines_25-1061.jpg?v=1762205612"},{"product_id":"speed-engineering-2016-camaro-lt1-lt4-6-2l-longtube-xpipe-kit","title":"Speed Engineering Longtube X-Pipe Kit — 2016–2024 Chevrolet Camaro SS \u0026 ZL1 | LT1\/LT4\/ZL1 6.2L | 25-1047","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eComplete your 6th Gen Camaro exhaust build with Speed Engineering's 3\" longtube X-pipe kit. Built from 304 natural stainless steel with mandrel-bent tubing, TIG-welded construction, and 3\" band clamps included. Dyno proven and designed to work exclusively with Speed Engineering longtube headers on LT1, LT4, and ZL1 6.2L Camaro applications.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e This X-pipe is designed to work with Speed Engineering longtube headers only. It is NOT compatible with factory exhaust manifolds or any factory exhaust manifold equipment.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eX-Style Crossover Design\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with LT1, LT4, ZL1, and 6.2L Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4\/ZL1 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4\/ZL1 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4\/ZL1 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4\/ZL1 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4\/ZL1 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2020 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4\/ZL1 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2021 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4\/ZL1 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4\/ZL1 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4\/ZL1 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2024 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4\/ZL1 6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this X-pipe work with my factory exhaust manifolds?\u003c\/strong\u003e No. This X-pipe is designed to work with Speed Engineering longtube headers only. It is not compatible with factory exhaust manifolds or any factory exhaust manifold equipment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What size tubing does this X-pipe use?\u003c\/strong\u003e This X-pipe uses 3\" mandrel bent tubing throughout with 3\" band clamps included for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines is this X-pipe compatible with?\u003c\/strong\u003e This X-pipe is compatible with LT1, LT4, ZL1, and 6.2L engines found in 2016–2024 Chevrolet Camaro SS and ZL1 models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material is this X-pipe made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and mandrel-bent tubing.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is this X-pipe street legal?\u003c\/strong\u003e No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41212758360112,"sku":"25-1047","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2016_Camaro_LT1_LT4_Longtube_X-Pipe_Kit_6.2L_Engine_25-1047.jpg?v=1762205701"},{"product_id":"speed-engineering-2016-camaro-lt1-lt4-1-7-8-longtube-headers","title":"Speed Engineering 1-7\/8\" Longtube Headers — 2016–2024 Chevrolet Camaro SS \u0026 ZL1 | LT1\/LT4 6.2L | 25-1046","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe factory exhaust manifolds on your 6th Gen Camaro SS or ZL1 are one of the first restrictions holding back your LT1 or LT4. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel for maximum exhaust flow and over 25 rear-wheel horsepower over stock. Speed Engineering X-pipe kit is required for installation and sold separately.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e X-pipe is natural stainless steel.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Port-Matched Primary Tubes\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LT1\/LT4 performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on 6th Gen Camaro applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.2L LT1 and LT4 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Camaro SS — LT1 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2020 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2021 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2024 Chevrolet Camaro SS — 6.2L LT1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Camaro ZL1 — LT4 6.2L Supercharged\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2020 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2021 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2024 Chevrolet Camaro ZL1 — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is an X-pipe included with these headers?\u003c\/strong\u003e No. These are headers only. The Speed Engineering X-pipe kit is required for proper installation, is natural stainless steel, and is sold separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between these headers and the 1-7\/8\" full kit (25-1046)?\u003c\/strong\u003e The full kit includes these headers plus the Speed Engineering X-pipe, header bolts, MLS gaskets, and O₂ extension harnesses. These headers only include the headers themselves. Choose the full kit for an all-in-one purchase; choose headers only if you already have or plan to source the X-pipe separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between these 1-7\/8\" headers and the 2\" headers (25-1061)?\u003c\/strong\u003e The primary tube diameter is the key difference. The 1-7\/8\" headers are a strong choice for most street and performance builds. The 2\" headers deliver maximum exhaust flow for more aggressive builds with supporting modifications such as a cam, heads, or forced induction additions.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 6th Gen Camaro SS and ZL1 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the 6.2L LT1 found in the 2016–2024 Camaro SS and the 6.2L LT4 found in the 2017–2024 Camaro ZL1.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228070060080,"sku":"25-1046","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2016_Camaro_1-7_8_Longtube_Headers_LT1_LT4_Engines_25-1046.png?v=1762205770"},{"product_id":"speed-engineering-2016-camaro-lt1-lt4-6-2l-manifold-xpipe-kit","title":"Speed Engineering Manifold X-Pipe Kit — 2016+ Chevrolet Camaro SS \u0026 ZL1 LT1\/LT4 6.2L | 25-1064","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eIf you're looking to improve exhaust tone and flow on your 6th Gen Camaro SS or ZL1 without removing the factory manifolds or catalytic converters, this is the kit. Speed Engineering's 3\" manifold X-pipe bolts directly to the factory exhaust system, connects both sides through an X-style crossover, and keeps all O₂ sensors in place — no tuning required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent tubing and TIG-welded construction, this is a clean, no-compromise bolt-on upgrade that delivers improved exhaust tone and flow while working within your factory setup.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eCompatibility Note:\u003c\/strong\u003e This X-pipe is designed to work with factory exhaust manifolds only. It is NOT compatible with Speed Engineering longtube headers or any aftermarket longtube header system.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eX-Style Crossover Design\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDirect Bolt-On to Factory Exhaust\u003c\/strong\u003e — No cutting, welding, or modifications required\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eRetains Both Front and Rear O₂ Sensors\u003c\/strong\u003e — No check engine light, no tuning required\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with LT1, LT4, and ZL1 6.2L Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2020 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2021 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2024 Chevrolet Camaro SS \u0026amp; ZL1 — LT1\/LT4 6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this X-pipe work with my longtube headers?\u003c\/strong\u003e No. This X-pipe is specifically designed to work with the factory exhaust manifolds and catalytic converters. It is not compatible with Speed Engineering longtube headers or any aftermarket longtube header system.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will I get a check engine light after installing this X-pipe?\u003c\/strong\u003e No. This system retains both the front and rear O₂ sensors in their factory locations, so no check engine light will be triggered and no PCM tuning is required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Does this X-pipe require any cutting or welding?\u003c\/strong\u003e No. This is a direct bolt-on system designed to connect to the factory exhaust manifolds with no cutting, welding, or modifications required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What size tubing does this X-pipe use?\u003c\/strong\u003e This X-pipe uses 3\" mandrel bent tubing throughout with 3\" band clamps included for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines is this X-pipe compatible with?\u003c\/strong\u003e Part #25-1064 is compatible with LT1, LT4, and ZL1 6.2L engines found in 2016–2024 Chevrolet Camaro SS and ZL1 models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is this X-pipe street legal?\u003c\/strong\u003e No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41227878203440,"sku":"25-1064","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2016_Camaro_LT1_LT4_Manifold_X-Pipe_Kit_6.2L_Engine_25-1064.png?v=1762205895"},{"product_id":"speed-engineering-universal-gen5-lt1-lt4-turbo-forward-upward-headers","title":"Speed Engineering Universal Gen 5 LT1\/LT4 Turbo Forward \u0026 Upward Facing 1-3\/4\" Headers | 25-1065","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilding a custom turbo setup around a Gen 5 LT1 or LT4 engine? Speed Engineering's forward and upward facing turbo headers give you a solid foundation to work from. Built from polished 304 stainless steel with mandrel-bent primary tubes, CNC-machined flanges, and full TIG-welded construction, these headers are designed for custom turbo builds where a universal fit is needed rather than a vehicle-specific application.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e These are completely universal headers not designed for any specific vehicle. A Camaro or Corvette water pump and other supporting components will be required for installation.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e1-3\/4\" Primary Tubes\u003c\/strong\u003e — Sized for turbo applications on Gen 5 LT engines\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Short Collector Design\u003c\/strong\u003e — Forward and upward facing for turbo placement flexibility\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter throughout, no crimping or restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the cylinder head for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003ePolished 304 Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 5.3L, 6.2L, LT1, and LT4 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGM Gen 5 5.3L LT\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGM Gen 5 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGM Gen 5 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What vehicles do these headers fit?\u003c\/strong\u003e These are completely universal headers and are not designed for any specific vehicle application. They are intended for custom turbo builds using Gen 5 LT1 or LT4 engines. A Camaro or Corvette water pump and other supporting components will be required for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What direction do the collectors face?\u003c\/strong\u003e The collectors face forward and upward, making these headers suited for custom turbo builds where turbocharger placement requires that orientation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with GM Gen 5 5.3L, 6.2L LT1, and 6.2L LT4 V8 engines.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What size are the primary tubes?\u003c\/strong\u003e The primary tubes are 1-3\/4\" with a 3\" short collector design.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e Polished 304 stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included with the headers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41227886788656,"sku":"25-1065","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_Universal_Gen_5_LT1_LT4_Turbo_Forward_Upward_Facing_1-3_4_Headers_25-1065.png?v=1762205981"},{"product_id":"speed-engineering-2010-2015-camaro-ls3-l99-2-inch-longtube-headers","title":"Speed Engineering 2\" Longtube Headers — 2010–2015 Chevrolet Camaro SS \u0026 ZL1 LS3\/L99 6.2L | 25-1078","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your 5th Gen Camaro SS or ZL1 are one of the first restrictions standing between you and more power. Speed Engineering's 2\" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 25 rear-wheel horsepower over stock.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined port-matched flanges, and full TIG-welded construction — engineered to fit right and built to last.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e2\" Port-Matched Primary Tubes\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on LS3 and L99 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with LS3, L99, ZL1, and 6.2L Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Band clamps are only included when the off-road connection pipe upgrade is selected.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add to a 5th Gen Camaro?\u003c\/strong\u003e Speed Engineering's 2\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on LS3 and L99 equipped 2010–2015 Camaro SS and ZL1 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do band clamps come included with these headers?\u003c\/strong\u003e Band clamps are only included when the off-road connection pipe upgrade is selected at the time of purchase. They are not included with the headers alone.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the LS3, L99, ZL1, and 6.2L engines found in 2010–2015 Chevrolet Camaro SS and ZL1 models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What size are the primary tubes?\u003c\/strong\u003e These headers feature full 2\" port-matched primary tubes with a 3\" collector — sized for maximum flow on the LS3 and L99 platform.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined port-matched flanges for a precise, durable, leak-free fit.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228065996848,"sku":"25-1078","price":379.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2010_2015_Camaro_2_Longtube_Headers_LS3_L99_Engines_25-1078.png?v=1762206894"},{"product_id":"speed-engineering-2010-2015-camaro-ls3-l99-1-7-8-longtube-headers","title":"Speed Engineering 1-7\/8\" Longtube Headers — 2010–2015 Chevrolet Camaro SS \u0026 ZL1 LS3\/L99 6.2L | 25-1017","description":"\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your 5th Gen Camaro SS or ZL1 are one of the first restrictions standing between you and more power. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 25 rear-wheel horsepower over stock.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined port-matched flanges, and full TIG-welded construction — engineered to fit right and built to last.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e1-7\/8\" Port-Matched Primary Tubes\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on LS3 and L99 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with LS3, L99, ZL1, and 6.2L Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Band clamps are only included when the off-road connection pipe upgrade is selected.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Camaro SS \u0026amp; ZL1 — LS3\/L99 6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add to a 5th Gen Camaro?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on LS3 and L99 equipped 2010–2015 Camaro SS and ZL1 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What is the difference between the 1-7\/8\" and 2\" longtube headers for the 5th Gen Camaro?\u003c\/strong\u003e The primary tube diameter is the key difference. The 1-7\/8\" headers are the more traditional size and work well across a broad RPM range, while the 2\" headers are better suited for higher RPM builds with more aggressive modifications. For most street and mild performance builds the 1-7\/8\" tubes are the more common choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do band clamps come included with these headers?\u003c\/strong\u003e Band clamps are only included when the off-road connection pipe upgrade is selected at the time of purchase. They are not included with the headers alone.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the LS3, L99, ZL1, and 6.2L engines found in 2010–2015 Chevrolet Camaro SS and ZL1 models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What size are the primary tubes?\u003c\/strong\u003e These headers feature full 1-7\/8\" port-matched primary tubes with a 3\" collector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined port-matched flanges for a precise, durable, leak-free fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228066488368,"sku":"25-1017","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2010_2015_Camaro_1-7_8_Longtube_Headers_LS3_L99_Engines_25-1017.png?v=1762206995"},{"product_id":"speed-engineering-2010-2015-camaro-true-dual-exhaust-ls3-l99-ss-1le-zl1","title":"Speed Engineering True Dual Exhaust — 2010–2015 Chevrolet Camaro | LS3\/L99 6.2L | SS, 1LE | 25-1022 ETA 6\/30\/26","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eLooking for a complete axle-back exhaust system for your 5th Gen Camaro that works whether you're running stock manifolds or Speed Engineering longtube headers? This true dual exhaust system is built from 3\" mandrel bent 304 natural stainless steel with insulated bullet style blow-through mufflers and a true dual X-pipe crossover. Choose between single or dual 4\" rear exit tips, both included. 3\" stainless band clamps are included, and an optional wideband O₂ bung is available for tuning applications.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eImportant Note:\u003c\/strong\u003e Convertible applications will require removal of, or spacers for, factory braces.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent 3\" Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWorks with Stock Manifolds\/Cats\u003c\/strong\u003e — Compatible with factory exhaust manifolds\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWorks with Speed Engineering Longtube Headers\u003c\/strong\u003e — Also compatible for maximum flow builds\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrue Dual X-Pipe System\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eInsulated Bullet Style Blow-Through Mufflers\u003c\/strong\u003e — Deep, aggressive exhaust tone with straight-through flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSingle \u0026amp; Dual Rear Exit Tip Options Included\u003c\/strong\u003e — Choose your preferred look\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Stainless Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eOptional Wideband O₂ Bung\u003c\/strong\u003e — Available for wideband sensor placement for tuning applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eSingle \u0026amp; Dual 4\" Exhaust Tips\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.2L LS3 and L99 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Camaro SS — LS3\/L99 6.2L (5th Gen)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Camaro SS (RWD) — 6.2L LS3\/L99\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Camaro SS (RWD) — 6.2L LS3\/L99\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Camaro SS (RWD) — 6.2L LS3\/L99\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Camaro SS (RWD) — 6.2L LS3\/L99\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Camaro SS (RWD) — 6.2L LS3\/L99\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Camaro SS (RWD) — 6.2L LS3\/L99\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Camaro 1LE — LS3 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Camaro 1LE (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Camaro 1LE (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Camaro 1LE (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is this exhaust compatible with my ZL1?\u003c\/strong\u003e\u003cbr\u003eThis listing's engine compatibility is specified as LS3\/L99 6.2L. The Camaro ZL1 (2012–2015) uses the supercharged LSA engine rather than LS3\/L99. If you have a ZL1, please contact us to confirm fitment before ordering, as the rear chassis and exhaust routing may differ from the SS and 1LE.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Does this work with my stock exhaust manifolds?\u003c\/strong\u003e\u003cbr\u003eYes. This system is compatible with stock manifolds and catalytic converters, as well as Speed Engineering longtube headers, making it a flexible choice regardless of your front-end setup.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Do I have to choose between single and dual exit tips?\u003c\/strong\u003e\u003cbr\u003eNo. Both single and dual 4\" rear exit tip configurations are included with this system, giving you the flexibility to choose your preferred look at installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this fit my convertible Camaro?\u003c\/strong\u003e\u003cbr\u003eYes, with a modification. Convertible applications will require removal of, or spacers for, factory braces to accommodate this exhaust system.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What mufflers does this system use?\u003c\/strong\u003e\u003cbr\u003eInsulated bullet style blow-through mufflers for a deep, aggressive exhaust tone with straight-through flow design.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is a wideband O₂ bung included?\u003c\/strong\u003e\u003cbr\u003eAn optional wideband O₂ bung is available for wideband sensor placement for tuning applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material is this system made from?\u003c\/strong\u003e\u003cbr\u003e304 natural stainless steel with mandrel-bent tubing and TIG-welded construction. 3\" stainless band clamps are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is this system street legal?\u003c\/strong\u003e\u003cbr\u003eNo. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e \u003c\/p\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41227992399920,"sku":"25-1022","price":599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2010_2015_Camaro_True_Dual_Exhaust_LS3_L99_SS_1LE_ZL1_25-1022.png?v=1762286075"},{"product_id":"speed-engineering-1998-2002-camaro-firebird-ls1-1-7-8-longtube-headers","title":"Speed Engineering 1-7\/8\" Longtube Headers — 1998–2002 Chevrolet Camaro \u0026 Pontiac Firebird\/Trans Am | LS1 5.7L | 25-1020","description":"\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your 4th Gen Camaro or Firebird are one of the first restrictions holding back your LS1. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel with merge spikes and full port-matched construction. Delivers over 25 rear-wheel horsepower over stock manifolds.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e These headers also work on 1993–1997 Camaro and Firebird applications equipped with an LS swap conversion.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Primary Tubes with Merge Spikes\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LS1 performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on LS1 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 5.7L LS1 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Camaro — LS1 5.7L (4th Gen F-Body)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1998 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePontiac Firebird \u0026amp; Trans Am — LS1 5.7L (4th Gen F-Body)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1998 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Also fits 1993–1997 Camaro and Firebird applications with an LS swap conversion.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What is the difference between these headers and the 1-3\/4\" full kit (25-1010)?\u003c\/strong\u003e Two differences: these are headers only — no Y-pipe or additional kit components are included — and the primary tube diameter is 1-7\/8\" vs 1-3\/4\". The 1-7\/8\" headers offer a step up in flow for more aggressive builds with supporting modifications. Choose the full kit for an all-in-one purchase or these headers if you already have an exhaust system in place.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these headers work on a 1993–1997 3rd Gen Camaro or Firebird?\u003c\/strong\u003e Yes, with an LS swap conversion. These headers are confirmed to work on 1993–1997 Camaro and Firebird applications equipped with an LS engine swap.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 1998–2002 Camaro and Firebird LS1 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228085755952,"sku":"25-1020","price":309.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1998_2002_Camaro_Firebird_1-7_8_Longtube_Headers_LS1_Engines_25-1020.png?v=1762205406"},{"product_id":"speed-engineering-1998-2002-camaro-firebird-1-3-4-longtube-headers-5-7l-ls1","title":"Speed Engineering 1-3\/4\" Longtube Headers — 1998–2002 Chevrolet Camaro \u0026 Pontiac Firebird\/Trans Am 5.7L LS1 | 25-1010","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your 4th Gen Camaro or Firebird are leaving power on the table. Speed Engineering's 1-3\/4\" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 25 rear-wheel horsepower over stock.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, merge spikes, and full TIG-welded construction.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-3\/4\" Primary Tubes with Merge Spikes\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on 5.7L LS1 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 5.7L LS1 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Camaro — SS \u0026amp; Z28 (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1998 Chevrolet Camaro SS\/Z28 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Camaro SS\/Z28 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Camaro SS\/Z28 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Camaro SS\/Z28 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Camaro SS\/Z28 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePontiac Firebird — Formula \u0026amp; Trans Am (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1998 Pontiac Firebird Formula\/Trans Am (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Pontiac Firebird Formula\/Trans Am (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Pontiac Firebird Formula\/Trans Am (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Pontiac Firebird Formula\/Trans Am (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Pontiac Firebird Formula\/Trans Am (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e These headers will also work on 1993–1997 Camaro and Firebird applications with an LS swap conversion.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add to a 4th Gen Camaro or Firebird?\u003c\/strong\u003e Speed Engineering's 1-3\/4\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 5.7L LS1 equipped 1998–2002 Camaro and Firebird\/Trans Am applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What is the difference between the 1-3\/4\" and 1-7\/8\" headers for the 4th Gen Camaro and Firebird?\u003c\/strong\u003e The primary tube diameter is the key difference. The 1-3\/4\" headers work well across a broad RPM range and are a strong choice for most street and mild performance builds. The 1-7\/8\" headers offer a step up in flow and are better suited for more aggressive builds with supporting modifications where maximum exhaust scavenging is the priority.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these headers work on a 1993–1997 Camaro or Firebird?\u003c\/strong\u003e Yes, with an LS swap conversion. These headers are designed for the 1998–2002 platform but are compatible with 1993–1997 Camaro and Firebird applications that have been converted to an LS engine.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the 5.7L LS1 engine found in 1998–2002 Chevrolet Camaro SS\/Z28 and Pontiac Firebird Formula\/Trans Am models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228088279088,"sku":"25-1010","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1998_2002_Camaro_Firebird_1-3_4_Longtube_Headers_5.7L_LS1_25-1010.png?v=1762286201"},{"product_id":"speed-engineering-1998-2002-camaro-firebird-ls1-true-dual-exhaust-rear-exit","title":"Speed Engineering True Dual Exhaust — 1998–2002 Chevrolet Camaro \u0026 Pontiac Firebird\/Trans Am LS1 Rear Exit | 25-1031","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eReady to give your 4th Gen Camaro or Firebird a proper true dual rear exit exhaust? Speed Engineering's system is built from 3\" mandrel bent 304 natural stainless steel with a true dual X-pipe design, insulated bullet style blow-through mufflers, and dual 4\" exhaust tips — all designed specifically for the LS1 F-body. Don't be fooled by cheaper competitor knockoffs. Most have fitment issues and a dropped center section that kills ground clearance. Speed Engineering's system features a raised center section with a custom hanger designed to keep it as high as possible. Dyno proven.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Installation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eA Suspension Engineering Panhard Rod Relocation Kit is required\u003c\/strong\u003e for this system to clear over the rear axle. Available in Black or Red — select your color at checkout\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDesigned to work with Speed Engineering 1-3\/4\" and 1-7\/8\" F-body longtube headers only\u003c\/strong\u003e — not compatible with factory exhaust manifolds. Also fits eBay, OBX, and PaceSetter style longtube headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e1982–1992 F-body LS swap applications\u003c\/strong\u003e — this system can also be used with modification at the collectors\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLowered vehicles may require modification\u003c\/strong\u003e for proper ground clearance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrue Dual X-Pipe Design\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eRaised Center Section with Custom Hanger\u003c\/strong\u003e — Engineered for maximum ground clearance — a key advantage over competitor systems\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eInsulated Bullet Style Blow-Through Mufflers\u003c\/strong\u003e — Deep, aggressive exhaust tone with straight-through flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eOptional Wideband O₂ Bungs\u003c\/strong\u003e — Available for wideband O₂ sensor placement for tuning applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDual 4\" Exhaust Tips Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Stainless Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 5.7L LS1 and LS6 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Camaro — LS1 5.7L (4th Gen F-Body)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1998 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePontiac Firebird \u0026amp; Trans Am — LS1 5.7L (4th Gen F-Body)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1998 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Also fits 1982–1992 Camaro and Firebird LS swap applications with modification at the collectors.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do I need the Suspension Engineering Panhard Rod Relocation Kit?\u003c\/strong\u003e Yes. This exhaust system requires a Suspension Engineering Panhard Rod Relocation Kit to clear over the rear axle. It is available in Black or Red — select your color at checkout when adding this system.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What headers does this system work with?\u003c\/strong\u003e This system is designed to work with Speed Engineering 1-3\/4\" and 1-7\/8\" F-body longtube headers. It is not compatible with factory exhaust manifolds. It has also been known to fit eBay, OBX, and PaceSetter style longtube headers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Why is Speed Engineering's system better than cheaper competitors?\u003c\/strong\u003e Most competitor systems have fitment issues and a dropped center section that reduces ground clearance. Speed Engineering's system features a raised center section with a custom hanger designed to hold it as high as possible for maximum clearance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this system work on a 1982–1992 F-body with an LS swap?\u003c\/strong\u003e Yes, with modification at the collectors. This system has been used on 1982–1992 Camaro and Firebird LS swap applications with collector modifications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this system work on a lowered vehicle?\u003c\/strong\u003e Lowered vehicles may require additional modification for proper ground clearance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What mufflers does this system use?\u003c\/strong\u003e Insulated bullet style blow-through mufflers for a deep, aggressive exhaust tone with straight-through flow design.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are wideband O₂ bungs included?\u003c\/strong\u003e Optional wideband O₂ bungs are available for wideband sensor placement for tuning applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material is this exhaust system made from?\u003c\/strong\u003e 304 natural stainless steel with mandrel-bent tubing and TIG-welded construction. Dual 4\" exhaust tips and 3\" stainless band clamps are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is this exhaust system street legal?\u003c\/strong\u003e No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3)\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"None","offer_id":41228038504496,"sku":"25-1031","price":499.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":41228037816368,"sku":"25-1031B","price":604.98,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":41228037849136,"sku":"25-1031R","price":604.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1998_2002_Camaro_Firebird_LS1_True_Dual_Exhaust_Rear_Exit_25-1031.png?v=1762207766"},{"product_id":"speed-engineering-1998-2002-camaro-firebird-ls1-true-dual-exhaust-axle-exit","title":"Speed Engineering True Dual Exhaust — 1998–2002 Chevrolet Camaro \u0026 Pontiac Firebird\/Trans Am LS1 Axle Exit | 25-1030","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA clean, tucked axle exit alternative to the rear exit system for your 4th Gen Camaro or Firebird. Speed Engineering's axle exit true dual exhaust is built from 3\" mandrel bent 304 natural stainless steel with a true dual X-pipe design and insulated bullet style blow-through mufflers — exiting just at the axle for a cleaner, more tucked profile than the rear exit setup. No Panhard rod relocation kit required. Dyno proven.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Installation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDesigned to work with Speed Engineering 1-3\/4\" and 1-7\/8\" F-body longtube headers only\u003c\/strong\u003e — not compatible with factory exhaust manifolds. Also fits eBay, OBX, and PaceSetter style longtube headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eHangers are designed to be welded or bolted to the floorboard\u003c\/strong\u003e — bolts are not included\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eWill NOT work with Suspension Engineering adjustable torque arm\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLowered vehicles may require modification\u003c\/strong\u003e for proper ground clearance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrue Dual X-Pipe Design\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eAxle Exit Design\u003c\/strong\u003e — Clean, tucked exit at the rear axle — no Panhard rod relocation required\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eInsulated Bullet Style Blow-Through Mufflers\u003c\/strong\u003e — Deep, aggressive exhaust tone with straight-through flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eOptional Wideband O₂ Bungs\u003c\/strong\u003e — Available for wideband O₂ sensor placement for tuning applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Stainless Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 5.7L LS1 and LS6 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Camaro — LS1 5.7L (4th Gen F-Body)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1998 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Camaro — 5.7L LS1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePontiac Firebird \u0026amp; Trans Am — LS1 5.7L (4th Gen F-Body)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1998 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Pontiac Firebird\/Trans Am — 5.7L LS1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What is the difference between this system and the rear exit version (25-1031)?\u003c\/strong\u003e The key difference is exhaust exit location and installation requirements. The axle exit system (25-1030) exits at the rear axle for a cleaner, more tucked profile — and does not require the Suspension Engineering Panhard rod relocation kit. The rear exit system (25-1031) exits further back behind the bumper with dual 4\" tips for a more aggressive look but requires the Panhard rod relocation kit for axle clearance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Does this system require a Panhard rod relocation kit?\u003c\/strong\u003e No. Unlike the rear exit system, this axle exit setup does not require a Panhard rod relocation kit.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this system work with a Suspension Engineering adjustable torque arm?\u003c\/strong\u003e No. This exhaust system is not compatible with the Suspension Engineering adjustable torque arm.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How are the hangers attached?\u003c\/strong\u003e The hangers are designed to be welded or bolted to the floorboard. Bolts are not included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What headers does this system work with?\u003c\/strong\u003e This system is designed to work with Speed Engineering 1-3\/4\" and 1-7\/8\" F-body longtube headers. It is not compatible with factory exhaust manifolds. It has also been known to fit eBay, OBX, and PaceSetter style longtube headers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are wideband O₂ bungs included?\u003c\/strong\u003e Optional wideband O₂ bungs are available for wideband sensor placement for tuning applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this system work on a lowered vehicle?\u003c\/strong\u003e Lowered vehicles may require additional modification for proper ground clearance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material is this exhaust system made from?\u003c\/strong\u003e 304 natural stainless steel with mandrel-bent tubing and TIG-welded construction. 3\" stainless band clamps are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is this exhaust system street legal?\u003c\/strong\u003e No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228051644464,"sku":"25-1030","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1998_2002_Camaro_Firebird_LS1_True_Dual_Exhaust_Axle_Exit_25-1030.jpg?v=1762207873"},{"product_id":"speed-engineering-1993-1997-camaro-firebird-1-3-4-longtube-headers-gen-2-lt1","title":"Speed Engineering 1-3\/4\" Longtube Headers — 1993–1997 Chevrolet Camaro \u0026 Pontiac Firebird\/Trans Am | Gen 2 LT1 5.7L | 25-1019","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThe factory exhaust manifolds on your 4th Gen Camaro Z28 or Firebird are one of the first restrictions holding back your Gen 2 LT1. Speed Engineering's 1-3\/4\" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 20 rear-wheel horsepower over stock. Built from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, and full TIG-welded construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Note:\u003c\/strong\u003e Some earlier LT heads have a wider bolt spread. These headers measure \u003cstrong\u003e17-3\/8\" from front center bolt hole to rear center bolt hole\u003c\/strong\u003e. Verify your cylinder head bolt spacing before ordering.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-3\/4\" Primary Tubes\u003c\/strong\u003e — Sized for maximum flow on Gen 2 LT1 5.7L applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 20+ RWHP gain on Gen 2 LT1 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with Gen 2 LT1 5.7L Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Camaro Z28 — Gen 2 LT1 (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1993 Chevrolet Camaro Z28 (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1994 Chevrolet Camaro Z28 (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1995 Chevrolet Camaro Z28 (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1996 Chevrolet Camaro Z28 (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1997 Chevrolet Camaro Z28 (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Camaro SS — Gen 2 LT1 (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1996 Chevrolet Camaro SS (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1997 Chevrolet Camaro SS (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePontiac Firebird — Gen 2 LT1 (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1993 Pontiac Firebird (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1994 Pontiac Firebird (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1995 Pontiac Firebird (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1996 Pontiac Firebird (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1997 Pontiac Firebird (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePontiac Firebird Trans Am — Gen 2 LT1 (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1993 Pontiac Firebird Trans Am (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1994 Pontiac Firebird Trans Am (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1995 Pontiac Firebird Trans Am (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1996 Pontiac Firebird Trans Am (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1997 Pontiac Firebird Trans Am (RWD) — 5.7L LT1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these headers fit all LT1 head configurations?\u003c\/strong\u003e Some earlier Gen 2 LT heads have a wider bolt spread than standard. These headers measure 17-3\/8\" from front center bolt hole to rear center bolt hole. Verify your cylinder head bolt spacing before ordering to ensure proper fitment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 1-3\/4\" longtube headers are dyno proven to add over 20 rear-wheel horsepower on 1993–1997 Camaro and Firebird Gen 2 LT1 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do these headers work on a Gen 5 LT1 (C7 Corvette, 5th Gen Camaro)?\u003c\/strong\u003e No. These headers are designed specifically for the Gen 2 LT1 5.7L engine found in 1993–1997 Camaro Z28\/SS and Firebird\/Trans Am. They are not compatible with the Gen 5 LT1 engine found in the C7 Corvette or 6th Gen Camaro.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228063080496,"sku":"25-1019","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1993_1997_Camaro_Firebird_1-3_4_Longtube_Headers_Gen_2_LT1_Engines_25-1019.jpg?v=1762208282"},{"product_id":"speed-engineering-2020-2023-c8-corvette-1-7-8-headers-lt2","title":"Speed Engineering 1-7\/8\" Shorty Headers — 2020–2023 Chevrolet C8 Corvette | LT2 6.2L | 25-1075","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe factory exhaust manifolds on your C8 Corvette are holding back your LT2. Speed Engineering's 1-7\/8\" shorty headers are a direct-fit upgrade specifically engineered for the mid-engine C8 platform — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel. Dyno proven to deliver over 20 rear-wheel horsepower over stock. Due to the tight mid-engine bay environment, heat wrap and stainless cable ties are included and it is highly recommended to wrap and insulate waterlines and other components throughout the engine bay during installation.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eImportant Installation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWill NOT fit Z06 models\u003c\/strong\u003e — LT2 6.2L naturally aspirated engine only. Does not fit the Z06 LT6 flat-plane crank engine\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eWill NOT fit convertible applications\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWill NOT work with the factory carbon fiber engine cover option\u003c\/strong\u003e — some carbon fiber will need to be removed for proper fitment\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eHeat wrap and stainless cable ties are included\u003c\/strong\u003e — it is highly recommended to insulate waterlines and miscellaneous components throughout the engine bay\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Port-Matched Primary Tubes\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LT2 performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eShorty Header Design\u003c\/strong\u003e — Engineered for the mid-engine C8 platform where longtube headers are not a fitment option\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the cylinder head for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eHeat Wrap and Stainless Cable Ties Included\u003c\/strong\u003e — For thermal protection of nearby components in the tight mid-engine bay\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 20+ RWHP gain on C8 LT2 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.2L LT2 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet C8 Corvette — LT2 6.2L (Coupe Only)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2020 Chevrolet Corvette C8 Coupe — 6.2L LT2 ⚠️ Does NOT fit Z06 or Convertible\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2021 Chevrolet Corvette C8 Coupe — 6.2L LT2 ⚠️ Does NOT fit Z06 or Convertible\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 Chevrolet Corvette C8 Coupe — 6.2L LT2 ⚠️ Does NOT fit Z06 or Convertible\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 Chevrolet Corvette C8 Coupe — 6.2L LT2 ⚠️ Does NOT fit Z06 or Convertible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will these headers fit my C8 Z06?\u003c\/strong\u003e No. These headers are designed for the LT2 6.2L naturally aspirated engine only. The C8 Z06 uses the LT6 5.5L flat-plane crank engine, which is a completely different architecture and is not compatible with these headers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will these fit a C8 Corvette Convertible?\u003c\/strong\u003e No. These headers will not work on convertible applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will these work if my C8 has the factory carbon fiber engine cover?\u003c\/strong\u003e Not without modification. These headers will not work with the factory carbon fiber engine cover option. Some carbon fiber will need to be removed for proper fitment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Why are heat wrap and cable ties included?\u003c\/strong\u003e The C8's mid-engine bay is a tight environment with waterlines and other components in close proximity to the headers. Speed Engineering includes heat wrap and stainless cable ties and strongly recommends insulating waterlines and other nearby components during installation to protect them from exhaust heat.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Why do these headers gain 20+ RWHP instead of the 25+ RWHP seen on other Speed Engineering headers?\u003c\/strong\u003e These are shorty headers — the mid-engine C8 platform does not allow for longtube headers due to the chassis layout. Shorty headers deliver meaningful power gains over stock manifolds but less than longtubes due to the shorter primary tube length.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228097454128,"sku":"25-1075","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2020_2023_C8_Corvette_1-7_8_Headers_LT2_Engines_25-1075.jpg?v=1762208834"},{"product_id":"speed-engineering-2014-2019-c7-corvette-2-longtube-headers-lt1-lt4","title":"Speed Engineering 2\" Longtube Headers — 2014–2019 Chevrolet C7 Corvette | LT1\/LT4 6.2L | 25-1067 ETA 6\/30\/26","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eLooking to maximize exhaust flow on your C7 Corvette? Speed Engineering's 2\" longtube headers are the step up from the 1-7\/8\" version — delivering maximum primary tube diameter for aggressive builds with supporting modifications. Mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel. Dyno proven to deliver over 25 rear-wheel horsepower over stock. Engineered with great ground clearance for lowered C7 builds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, and full TIG-welded construction.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSpeed Engineering X-pipe kit is required\u003c\/strong\u003e for proper installation — sold separately\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eManual transmission applications\u003c\/strong\u003e will need to reuse the factory exhaust hanger for X-pipe installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 2\" Port-Matched Primary Tubes\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LT performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eGreat Ground Clearance for Lowered Vehicles\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on C7 Corvette applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.2L LT1 and LT4 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C7 Corvette — LT1\/LT4 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C7 Corvette Z06 — LT4 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What is the difference between these headers and the 1-7\/8\" C7 headers (25-1044)?\u003c\/strong\u003e The primary tube diameter is the key difference. The 2\" headers deliver maximum exhaust flow and are best suited for more aggressive builds with supporting modifications such as a cam, heads, or forced induction. The 1-7\/8\" headers are a strong choice for most street and performance builds across a broader RPM range.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do I need an X-pipe kit to install these headers?\u003c\/strong\u003e Yes. Speed Engineering's X-pipe kit is required for proper installation and is sold separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Does my manual transmission C7 require any special considerations for X-pipe installation?\u003c\/strong\u003e Yes. Manual transmission applications will need to reuse the factory exhaust hanger for proper X-pipe installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add to a C7 Corvette?\u003c\/strong\u003e Speed Engineering's 2\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on C7 Corvette LT1 and LT4 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers good for lowered C7 Corvettes?\u003c\/strong\u003e Yes. These headers are engineered with great ground clearance, making them a solid choice for lowered C7 builds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the 6.2L LT1 found in the 2014–2019 C7 Corvette Base and Grand Sport, and the 6.2L LT4 found in the 2015–2019 C7 Corvette Z06.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228125405232,"sku":"25-1067","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2014_2019_C7_Corvette_2_Longtube_Headers_LT1_LT4_Engines_25-1067.png?v=1762209038"},{"product_id":"speed-engineering-2014-2019-c7-corvette-1-7-8-longtube-headers-lt1-lt4","title":"Speed Engineering 1-7\/8\" Longtube Headers — 2014–2019 Chevrolet C7 Corvette | LT1\/LT4 6.2L | 25-1044 ETA 6\/30\/26","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your C7 Corvette are leaving power on the table. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 25 rear-wheel horsepower over stock. Engineered with improved ground clearance for a strong choice on lowered C7 builds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, and full TIG-welded construction.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSpeed Engineering X-pipe kit is required\u003c\/strong\u003e for proper installation — sold separately\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eX-pipe is natural stainless steel, not polished\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eManual transmission applications\u003c\/strong\u003e will need to reuse the factory exhaust hanger for X-pipe installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Port-Matched Primary Tubes\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eGreat Ground Clearance for Lowered Vehicles\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on C7 Corvette applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.2L LT1 and LT4 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C7 Corvette — LT1\/LT4 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C7 Corvette Z06 — LT4 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do I need an X-pipe kit to install these headers?\u003c\/strong\u003e Yes. Speed Engineering's X-pipe kit is required for proper installation and is sold separately. Note that the X-pipe is natural stainless steel finish, not polished.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Does my manual transmission C7 require any special considerations for X-pipe installation?\u003c\/strong\u003e Yes. Manual transmission applications will need to reuse the factory exhaust hanger for proper X-pipe installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add to a C7 Corvette?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on C7 Corvette LT1 and LT4 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers good for lowered C7 Corvettes?\u003c\/strong\u003e Yes. These headers are specifically engineered with improved ground clearance, making them a strong choice for lowered C7 builds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the 6.2L LT1 found in the 2014–2019 C7 Corvette Base and Grand Sport, and the 6.2L LT4 found in the 2015–2019 C7 Corvette Z06.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228125569072,"sku":"25-1044","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2014_2019_C7_Corvette_1-7_8_Longtube_Headers_LT1_LT4_Engines_25-1044.jpg?v=1762209152"},{"product_id":"speed-engineering-2014-2019-c7-corvette-cat-back-x-pipe-kit-lt1-lt4-lt5","title":"Speed Engineering Cat-Back X-Pipe Kit — 2014–2019 Chevrolet C7 Corvette | LT1\/LT4\/LT5 6.2L | 25-1082","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eLooking to improve exhaust tone and flow on your C7 Corvette without removing the factory manifolds or catalytic converters? Speed Engineering's 3\" cat-back X-pipe kit bolts directly to the factory exhaust system, connects both sides through an X-style crossover, and keeps all O₂ sensors in place — no tuning required. A clean, bolt-on upgrade that delivers improved exhaust tone and flow while working within your factory setup.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent tubing and TIG-welded construction.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e This X-pipe is designed to work with factory exhaust manifolds and catalytic converters only. It does NOT work with Speed Engineering longtube headers.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eX-Style Crossover Design\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDirect Bolt-On to Factory Exhaust\u003c\/strong\u003e — No cutting, welding, or modifications required\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eRetains Both Front and Rear O₂ Sensors\u003c\/strong\u003e — No check engine light, no tuning required\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with LT1, LT4, and LT5 6.2L Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C7 Corvette Base \u0026amp; Grand Sport — LT1 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Corvette C7 — 6.2L LT1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C7 Corvette Z06 — LT4 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Corvette C7 Z06 — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C7 Corvette ZR1 — LT5 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Corvette C7 ZR1 — 6.2L LT5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this X-pipe work with Speed Engineering longtube headers?\u003c\/strong\u003e No. This X-pipe is designed to work with factory exhaust manifolds and catalytic converters only. It is not compatible with Speed Engineering longtube headers or any aftermarket longtube header system.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will I get a check engine light after installing this X-pipe?\u003c\/strong\u003e No. This system retains both the front and rear O₂ sensors in their factory locations so no check engine light will be triggered and no PCM tuning is required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Does this X-pipe require any cutting or welding?\u003c\/strong\u003e No. This is a direct bolt-on system designed to connect to the factory exhaust with no cutting, welding, or modifications required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines is this X-pipe compatible with?\u003c\/strong\u003e This X-pipe is compatible with LT1, LT4, and LT5 6.2L engines found in 2014–2019 C7 Corvette Base, Grand Sport, Z06, and ZR1 models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material is this X-pipe made from?\u003c\/strong\u003e 304 natural stainless steel with mandrel-bent tubing and TIG-welded construction.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is this X-pipe street legal?\u003c\/strong\u003e No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228128518192,"sku":"25-1082","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2014_2019_C7_Corvette_Cat-Back_X-Pipe_Kit_LT1_LT4_LT5_Engines_25-1082.png?v=1762209235"},{"product_id":"speed-engineering-2014-2019-c7-corvette-longtube-x-pipe-kit-lt1-lt4","title":"Speed Engineering Longtube X-Pipe Kit — 2014–2019 Chevrolet C7 Corvette | LT1\/LT4 6.2L | 25-1045 ETA 6\/30\/26","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eConnecting your Speed Engineering longtube headers to the axle-back on your C7 Corvette? This X-pipe kit is the crossover that completes the system. Built from 3\" mandrel bent 304 natural stainless steel with TIG-welded construction and 3\" band clamps included — designed specifically for Speed Engineering longtube headers. Covers all C7 Corvette LT1 and LT4 applications.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eThis X-pipe is designed for Speed Engineering longtube headers only\u003c\/strong\u003e — it will NOT work as a factory exhaust manifold replacement\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eManual transmission applications need to reuse the factory exhaust hanger\u003c\/strong\u003e for proper X-pipe installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrue X-Pipe Design\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.2L LT1 and LT4 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet C7 Corvette — LT1 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Corvette C7 (RWD) — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Corvette C7 (RWD) — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Corvette C7 (RWD) — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Corvette C7 (RWD) — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Corvette C7 (RWD) — 6.2L LT1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Corvette C7 (RWD) — 6.2L LT1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet C7 Corvette Z06 — LT4 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Corvette C7 Z06 (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Corvette C7 Z06 (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Corvette C7 Z06 (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Corvette C7 Z06 (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Corvette C7 Z06 (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this X-pipe work with factory exhaust manifolds?\u003c\/strong\u003e\u003cbr\u003eNo. This X-pipe is designed for use with Speed Engineering longtube headers only and will not work as a factory exhaust manifold replacement.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Do manual transmission cars need anything special for installation?\u003c\/strong\u003e\u003cbr\u003eYes. Manual transmission applications need to reuse the factory exhaust hanger for proper X-pipe installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Does this X-pipe pair with the Speed Engineering axle-back exhaust system (25-1081)?\u003c\/strong\u003e\u003cbr\u003eYes. This X-pipe connects the longtube headers to the axle-back exhaust system, which can be the factory exhaust (with included reducers) or the Speed Engineering true dual axle-back system.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What size tubing does this X-pipe use?\u003c\/strong\u003e\u003cbr\u003e3\" diameter, mandrel bent for consistent flow throughout. Band clamps are included for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material is this X-pipe made from?\u003c\/strong\u003e\u003cbr\u003e304 natural stainless steel with mandrel-bent tubing and TIG-welded construction.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is this X-pipe street legal?\u003c\/strong\u003e\u003cbr\u003eNo. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228130025520,"sku":"25-1045","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2014_2019_C7_Corvette_Longtube_X-Pipe_Kit_LT1_LT4_Engines_25-1045.png?v=1762209351"},{"product_id":"speed-engineering-2005-2013-c6-corvette-2-longtube-headers-ls2-ls3-ls7","title":"Speed Engineering 2\" Longtube Headers — 2005–2013 Chevrolet C6 Corvette | LS2\/LS3\/LS6\/LS7 6.0L\/6.2L | 25-1068","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your C6 Corvette are leaving power on the table. Speed Engineering's 2\" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 25 rear-wheel horsepower over stock. Engineered with improved ground clearance over competitors, making them an especially strong choice for lowered C6 builds across Base, Z06, and ZR1 trims.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, merge spikes, and full TIG-welded construction. \u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Installation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSpeed Engineering X-pipe kit is required\u003c\/strong\u003e for proper installation — sold separately\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eBase\/GS models\u003c\/strong\u003e use the 3\" X-pipe with 2.75\" reducers to factory exhaust\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eZ06 models\u003c\/strong\u003e use the 3\" X-pipe with 3\" connection\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e4L60E transmission\u003c\/strong\u003e — true dual exhaust does NOT work with early 4L60 transmissions. Modification to the passenger side tube is required for 4L60E fitment. Compatible with 6 speed automatic and manual transmissions without modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eRear exiting exhaust kit\u003c\/strong\u003e will NOT work with vehicles equipped with a differential cooler\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e2\" Primary Tubes with Merge Spike\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eImproved Ground Clearance Over Competitors\u003c\/strong\u003e — Engineered with extra clearance, ideal for lowered C6 builds\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on C6 Corvette applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.0L LS2\/LS6 and 6.2L LS3\/LS7 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C6 Corvette Base \u0026amp; Grand Sport (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Corvette C6 (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Corvette C6 (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Corvette C6 (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Corvette C6 (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C6 Corvette Z06 (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C6 Corvette ZR1 (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Corvette C6 ZR1 (RWD) — 6.2L LS9\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Corvette C6 ZR1 (RWD) — 6.2L LS9\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Corvette C6 ZR1 (RWD) — 6.2L LS9\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Corvette C6 ZR1 (RWD) — 6.2L LS9\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Corvette C6 ZR1 (RWD) — 6.2L LS9\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add to a C6 Corvette?\u003c\/strong\u003e Speed Engineering's 2\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on C6 Corvette LS2, LS3, LS6, and LS7 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do I need an X-pipe kit to install these headers?\u003c\/strong\u003e Yes. Speed Engineering's X-pipe kit is required for proper installation. Base and GS models use the 3\" X-pipe with 2.75\" reducers to factory exhaust. Z06 models use the 3\" X-pipe with a 3\" connection. The X-pipe is sold separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these work with my 4L60E transmission?\u003c\/strong\u003e True dual exhaust does not work with early 4L60 transmissions without modification. A modification to the passenger side tube is required for 4L60E fitment. These headers work with 6 speed automatic and manual transmissions without modification.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will the rear exiting exhaust kit work on my C6?\u003c\/strong\u003e The rear exiting exhaust kit will NOT work with vehicles equipped with a differential cooler.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers good for lowered C6 Corvettes?\u003c\/strong\u003e Yes. Speed Engineering specifically engineered these headers with improved ground clearance compared to competitors, making them a strong choice for lowered C6 builds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the 6.0L LS2\/LS6, 6.2L LS3\/LS9, and 7.0L LS7 engines found in 2005–2013 C6 Corvette Base, Z06, and ZR1 models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included with the headers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3)\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228154306608,"sku":"25-1068","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2005_2013_C6_Corvette_2_Longtube_Headers_LS2_LS3_LS6_LS7_Engines_25-1068.png?v=1762209484"},{"product_id":"speed-engineering-2005-2013-c6-corvette-1-7-8-longtube-headers-ls2-ls3-ls7","title":"Speed Engineering 1-7\/8\" Longtube Headers — 2005–2013 Chevrolet C6 Corvette | LS2\/LS3\/LS6\/LS7\/LS9 | 25-1128","description":"\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThe factory exhaust manifolds on your C6 Corvette are leaving power on the table. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel with merge spikes. Engineered with improved ground clearance over competitors — a strong choice for lowered C6 builds. Delivers over 25 rear-wheel horsepower over stock. Speed Engineering X-pipe kit is required for installation and sold separately.\u003c\/span\u003e\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSpeed Engineering X-pipe kit is required\u003c\/strong\u003e for proper installation — sold separately\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eBase\/GS models:\u003c\/strong\u003e 3\" X-pipe with 2.75\" reducers to factory exhaust\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eZ06 models:\u003c\/strong\u003e 3\" X-pipe with 3\" connection\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e4L60E transmission:\u003c\/strong\u003e True dual exhaust does NOT work with early 4L60 transmissions. Modification to the passenger side tube is required for 4L60E fitment. Compatible with 6 speed automatic and manual transmissions without modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eRear exiting exhaust kit\u003c\/strong\u003e will NOT work with vehicles equipped with a differential cooler\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Primary Tubes with Merge Spike\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LS performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eImproved Ground Clearance Over Competitors\u003c\/strong\u003e — Engineered with extra clearance ideal for lowered C6 builds\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on C6 Corvette applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.0L LS2\/LS6, 6.2L LS3\/LS9, and 7.0L LS7 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C6 Corvette Base \u0026amp; Grand Sport (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Corvette C6 (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Corvette C6 (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Corvette C6 (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C6 Corvette Z06 (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C6 Corvette ZR1 (RWD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Corvette C6 ZR1 (RWD) — 6.2L LS9\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Corvette C6 ZR1 (RWD) — 6.2L LS9\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Corvette C6 ZR1 (RWD) — 6.2L LS9\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Corvette C6 ZR1 (RWD) — 6.2L LS9\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Corvette C6 ZR1 (RWD) — 6.2L LS9\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is an X-pipe included with these headers?\u003c\/strong\u003e No. These are headers only. The Speed Engineering X-pipe kit is required for installation and is sold separately. Base and Grand Sport models use a 3\" X-pipe with 2.75\" reducers; Z06 models use a 3\" X-pipe with a 3\" connection.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What is the difference between these headers and the full kit (25-1128)?\u003c\/strong\u003e These are headers only. The full kit includes the 1-7\/8\" headers plus the X-pipe, header bolts, and MLS exhaust gaskets — a complete front-to-axle-back connection. Choose headers only if you already have or plan to source the X-pipe separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these work with my 4L60E transmission?\u003c\/strong\u003e True dual exhaust does not work with early 4L60 transmissions without modification. A modification to the passenger side tube is required for 4L60E fitment. These headers work with 6 speed automatic and manual transmissions without modification.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will the rear exiting exhaust kit work on my C6?\u003c\/strong\u003e The rear exiting exhaust kit will NOT work with vehicles equipped with a differential cooler.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers good for lowered C6 Corvettes?\u003c\/strong\u003e Yes. Speed Engineering engineered these headers with improved ground clearance over competitors, making them a strong choice for lowered C6 builds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on C6 Corvette applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the 6.0L LS2\/LS6, 6.2L LS3\/LS9, and 7.0L LS7 found in 2005–2013 C6 Corvette Base, Z06, and ZR1 models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003cbr\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228154601520,"sku":"25-1128","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2005_2013_C6_Corvette_1-7_8_Longtube_Headers_LS2_LS3_LS6_LS7_Engines_25-1128.png?v=1762209572"},{"product_id":"speed-engineering-2005-2013-c6-corvette-x-pipe-kit-ls2-ls3-ls7","title":"Speed Engineering X-Pipe Kit — 2005–2013 Chevrolet C6 Corvette | LS2\/LS3\/LS7 | 25-1053 ETA 6\/30\/26","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eConnecting your Speed Engineering longtube headers to the axle-back on your C6 Corvette? This X-pipe kit is the crossover that completes the system. Built from 3\" mandrel bent 304 natural stainless steel with TIG-welded construction and 3\" band clamps included — designed specifically for Speed Engineering longtube headers. Optional Z06 3\" tubing is included to accommodate the Z06's chassis-specific routing. Covers LS2, LS3, and LS7 applications across the full C6 model range.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e This X-pipe is designed for Speed Engineering longtube headers only — it will NOT work as a factory exhaust manifold replacement.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrue X-Pipe Design\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eIncludes Optional Z06 3\" Tubing\u003c\/strong\u003e — Accommodates Z06-specific chassis routing\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with LS2, LS3, and LS7 Engines (6.0L, 6.2L, 7.0L)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet C6 Corvette — LS2 6.0L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Corvette C6 (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Corvette C6 (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Corvette C6 (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet C6 Corvette — LS3 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Corvette C6 (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet C6 Corvette Z06 — LS7 7.0L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Corvette C6 Z06 (RWD) — 7.0L LS7\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this X-pipe work with factory exhaust manifolds?\u003c\/strong\u003e\u003cbr\u003eNo. This X-pipe is designed for use with Speed Engineering longtube headers only and will not work as a factory exhaust manifold replacement.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Does this fit the Z06?\u003c\/strong\u003e\u003cbr\u003eYes. Optional Z06 3\" tubing is included to accommodate the Z06's chassis-specific exhaust routing.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What engines is this X-pipe compatible with?\u003c\/strong\u003e\u003cbr\u003eThis X-pipe is compatible with LS2 (6.0L, 2005–2007), LS3 (6.2L, 2008–2013), and LS7 (7.0L, Z06) applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What size tubing does this X-pipe use?\u003c\/strong\u003e\u003cbr\u003e3\" diameter, mandrel bent for consistent flow throughout. Band clamps are included for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material is this X-pipe made from?\u003c\/strong\u003e\u003cbr\u003e304 natural stainless steel with mandrel-bent tubing and TIG-welded construction.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is this X-pipe street legal?\u003c\/strong\u003e\u003cbr\u003eNo. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228165677104,"sku":"25-1053","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2005_2013_C6_Corvette_X-Pipe_Kit_LS2_LS3_LS7_Engines_25-1053.png?v=1762209674"},{"product_id":"speed-engineering-corvette-c6-true-dual-exhaust-2005-2013-ls2-ls3-ls7-engines","title":"Speed Engineering Corvette C6 True Dual Exhaust 2005-2013 (LS2 LS3 LS7 ENGINES) 25-1063 ETA 6\/30\/26","description":"\u003cp data-mce-fragment=\"1\"\u003eSpeed Engineering true dual exhaust is made out of 304 stainless steel and offers great quality, performance, and affordability. Our exhaust is mandrel bent, tig welded, and feature natural stainless steel construction. All of our exhaust products have been dyno proven. We stand behind our exhaust in saying you will not find a better fitting, quality built, budget exhaust for your vehicle.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFeatures include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eMandrel Bent 3\" Tubing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eOptional True Dual X-Pipe System\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e3\" Stainless Band Clamps\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eInsulated Bullet Style Blow Through Mufflers\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eV8 Engines Only\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e6.0L, 6.2L, \u0026amp; 7.0L Engines\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e304 Natural Stainless Steel\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eDual 4\" Exhaust Tips\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eVehicle Applications:\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2005 C6 Corvette\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2006 C6 Corvette\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2007 C6 Corvette\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2008 C6 Corvette\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2009 C6 Corvette\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2010 C6 Corvette\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2011 C6 Corvette\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2012 C6 Corvette\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2013 C6 Corvette\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNote:\u003c\/strong\u003e True Dual Exhaust does\"not\" work with early 4L60 Transmissions. Only 6 speed auto and manual transmissions. Modification will be needed on the passenger side tube in order for a 4L60E Transmission to work.\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNote:\u003c\/strong\u003e Will not work with vehicles equipped with differential cooler.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eNote:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eThis system is designed to work with our headers and x-pipe only.\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/em\u003e\u003cem data-mce-fragment=\"1\"\u003eAxle back will need fabricaion if you are trying to connect to the OEM exhaust, or other manufactures products.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNote:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003eIn order to make this axle-back a complete bolt on kit it will require our headers and x-pipe.\u003c\/em\u003e\u003c\/p\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228173148208,"sku":"25-1063","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/25-1063C6CorvetteAxleBackExhaust.png?v=1711482836"},{"product_id":"speed-engineering-1997-2004-c5-corvette-1-7-8-longtube-headers-ls1-ls6","title":"Speed Engineering 1-7\/8\" Longtube Headers — 1997–2004 Chevrolet C5 Corvette LS1\/LS6 5.7L | 25-1034","description":"\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your C5 Corvette are one of the first restrictions holding back your LS1 or LS6. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 25 rear-wheel horsepower over stock — with an improved ground clearance design that sets them apart from the competition, making them an especially strong choice for lowered C5 builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, merge spikes, and full TIG-welded construction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eInstallation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRequires the use of a 2001–2004 oil dipstick tube\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRequires Speed Engineering's C5 Corvette X-pipe kit for proper installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e1-7\/8\" Port-Matched Primary Tubes\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector with Merge Spike\u003c\/strong\u003e — Optimized merge geometry for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eImproved Ground Clearance Over Competitors\u003c\/strong\u003e — Engineered with extra clearance, ideal for lowered C5 builds\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on LS1 and LS6 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 5.7L LS1 and LS6 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C5 Corvette — Base \u0026amp; Z06 (RWD) 5.7L LS1\/LS6\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1997 Chevrolet Corvette Base \u0026amp; Z06 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1998 Chevrolet Corvette Base \u0026amp; Z06 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Corvette Base \u0026amp; Z06 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Corvette Base \u0026amp; Z06 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Corvette Base \u0026amp; Z06 (RWD) — 5.7L LS1\/LS6\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Corvette Base \u0026amp; Z06 (RWD) — 5.7L LS1\/LS6\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Corvette Base \u0026amp; Z06 (RWD) — 5.7L LS1\/LS6\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Corvette Base \u0026amp; Z06 (RWD) — 5.7L LS1\/LS6\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add to a C5 Corvette?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on LS1 and LS6 equipped 1997–2004 C5 Corvette applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do I need any additional parts to install these headers?\u003c\/strong\u003e Yes. These headers require the use of a 2001–2004 oil dipstick tube and Speed Engineering's C5 Corvette X-pipe kit for proper installation. Both items must be sourced before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers good for lowered C5 Corvettes?\u003c\/strong\u003e Yes. Speed Engineering specifically engineered these headers with improved ground clearance compared to competitors, making them a strong choice for lowered C5 builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the 5.7L LS1 and LS6 engines found in 1997–2004 Chevrolet C5 Corvette Base and Z06 models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included with the headers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228184584240,"sku":"25-1034","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1997_2004_C5_Corvette_1-7_8_Longtube_Headers_LS1_LS6_Engines_25-1034.png?v=1762209789"},{"product_id":"speed-engineering-2014-2019-silverado-sierra-suv-1-7-8-longtube-headers","title":"Speed Engineering 1-7\/8\" Longtube Headers — 2014–2018 Chevrolet Silverado \u0026 GMC Sierra 1500 \u0026 GM SUVs | 5.3L\/6.2L | 25-1037","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe factory exhaust manifolds on your K2XX Silverado, Sierra, or full-size SUV are one of the first restrictions holding back your LS engine. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade delivering over 25 rear-wheel horsepower over stock with improved throttle response and a deeper, more aggressive exhaust tone. Y-pipe sold separately and required for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, merge spikes, CNC-machined flanges, and full TIG-welded construction. Standard graphite manifold gaskets included.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eY-pipe is compatible with 6 speed and 8 speed automatic transmissions\u003c\/strong\u003e — sold separately\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eGM 2500\/3500 6.0L applications:\u003c\/strong\u003e Use the 2007–2013 GMT900 exhaust products instead\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Primary Tubes with Merge Spikes\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on 5.3L and 6.2L applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 5.3L and 6.2L V8 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Silverado 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Silverado 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Silverado 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Silverado 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Silverado 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 GMC Sierra 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 GMC Sierra 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 GMC Sierra 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 GMC Sierra 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 GMC Sierra 1500 (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Tahoe (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Tahoe (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Tahoe (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Tahoe (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Tahoe (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Tahoe (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGMC Yukon (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 GMC Yukon (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 GMC Yukon (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 GMC Yukon (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 GMC Yukon (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 GMC Yukon (2WD\/4WD) — 5.3L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCadillac Escalade (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is a Y-pipe included with these headers?\u003c\/strong\u003e No. These are headers only. The Speed Engineering Y-pipe is sold separately and is required for proper installation. The Y-pipe is compatible with 6 speed and 8 speed automatic transmissions.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will these fit a 2500 or 3500 with a 6.0L engine?\u003c\/strong\u003e No. GM 2500\/3500 6.0L applications require the 2007–2013 GMT900 exhaust products.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between these headers and the 2014–2018 full kit (25-1037)?\u003c\/strong\u003e The full kit includes these headers plus the Speed Engineering Y-pipe, header bolts, and MLS exhaust gaskets. Choose the full kit for an all-in-one purchase; choose headers only if you already have or plan to source the Y-pipe separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 5.3L and 6.2L K2XX applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228196675632,"sku":"25-1037","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2014_2019_Silverado_Sierra_SUV_1-7_8_Longtube_Headers_25-1037.png?v=1762210077"},{"product_id":"speed-engineering-1999-2018-silverado-sierra-true-dual-x-pipe-system-universal","title":"Speed Engineering True Dual X-Pipe System — 1999–2018 Chevrolet Silverado \u0026 GMC Sierra | 4.8L\/5.3L\/6.0L\/6.2L | Universal | 25-1006","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eRunning Speed Engineering longtube headers on your Silverado or Sierra and need the crossover pipe that connects the two header collectors? Speed Engineering's true dual X-pipe system is that piece — built from 3\" mandrel bent 304 natural stainless steel with TIG-welded construction and 3\" stainless band clamps included. The X-pipe connects the driver and passenger side header collectors with a true crossover for improved exhaust pulse balancing and a deeper, more aggressive tone. Covers GMT800 (1999–2006), GMT900 (2007–2013), and K2XX (2014–2018) platform trucks. An optional wideband O₂ bung is available for tuning applications. Compatible with 4, 6, and 8 speed automatic transmissions.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e This system is designed to work with Speed Engineering longtube headers only. It is NOT compatible with factory exhaust equipment.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrue Dual X-Pipe Design\u003c\/strong\u003e — Connects both header collectors with a crossover for improved exhaust pulse balancing and tone\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eOptional Wideband O₂ Bung\u003c\/strong\u003e — Available for wideband sensor placement for tuning applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4, 6, and 8 Speed Automatic Transmissions\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Stainless Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eUniversal Fit — Covers GMT800, GMT900, and K2XX Silverado\/Sierra Platforms\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4.8L, 5.3L, 6.0L, and 6.2L V8 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ New body style only — NOT Classic\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ New body style only — NOT Classic\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this system work with my factory exhaust manifolds?\u003c\/strong\u003e No. This X-pipe is designed for use with Speed Engineering longtube headers only. It is not compatible with factory exhaust equipment of any kind.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between this X-pipe system and the Speed Engineering Y-pipe?\u003c\/strong\u003e The Y-pipe merges both header collectors into a single outlet for connection to a single cat-back system. The true dual X-pipe connects the two header collectors with a crossover for improved exhaust pulse balancing — it is not a full exhaust system and does not connect to a cat-back. Choose the Y-pipe for a single cat-back setup; choose the X-pipe for improved tone and flow balance between the two exhaust banks.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What transmissions does this system work with?\u003c\/strong\u003e This X-pipe is compatible with 4, 6, and 8 speed automatic transmissions across the 1999–2018 Silverado and Sierra platform range.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is a wideband O₂ bung included?\u003c\/strong\u003e An optional wideband O₂ bung is available for wideband sensor placement for tuning applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Does this fit both GMT800 and GMT900 trucks?\u003c\/strong\u003e Yes. This universal X-pipe covers GMT800 (1999–2006), GMT900 (2007–2013), and K2XX (2014–2018) Silverado and Sierra 1500 applications. Note that 2007 model year trucks must be the new body style only — the 2007 Classic (carry-over GMT800) is not covered under the GMT900 range.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material is this X-pipe made from?\u003c\/strong\u003e 304 natural stainless steel with mandrel-bent tubing and TIG-welded construction. 3\" stainless band clamps are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is this X-pipe street legal?\u003c\/strong\u003e No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228204572720,"sku":"25-1006","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1999_2018_Silverado_Sierra_True_Dual_X-Pipe_System_Universal_25-1006.png?v=1762210449"},{"product_id":"speed-engineering-1999-2019-silverado-sierra-true-dual-exhaust-system-single-cab-axle-exit","title":"Speed Engineering True Dual Exhaust System — 1999–2018 Chevrolet Silverado \u0026 GMC Sierra | Single Cab, Short Bed Axle Exit | 25-1006","description":"\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"0\"\u003eLooking \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"8\"\u003eto complete your true dual exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"43\"\u003ebuild on your Silverado or Sierra \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"77\"\u003ewith an axle-exit system that connects \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"116\"\u003eto factory hanger locations? Speed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"151\"\u003eEngineering's true dual exhaust system \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"190\"\u003eis built from 3\" mandrel bent 304 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"224\"\u003enatural stainless steel with insulated \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"263\"\u003ebullet style blow-through mufflers, a \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"301\"\u003etrue dual X-pipe crossover, and 3\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"336\"\u003estainless band clamps included. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"368\"\u003eDesigned for 1999–2018 single cab, \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"403\"\u003eshort bed trucks (119\" wheelbase) and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"441\"\u003econnects directly to factory hanger \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"477\"\u003elocations, exiting at the rear axle for \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"517\"\u003ea clean, tucked profile. An optional \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"554\"\u003ewideband O₂ bung is available for \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"588\"\u003etuning applications. Compatible with 4, \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"628\"\u003e6, and 8 speed automatic transmissions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e⚠️ \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eImportant:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e This system is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"35\"\u003edesigned to work with Speed Engineering \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"75\"\u003e1999–2018 truck and SUV longtube \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"108\"\u003eheaders only. It is NOT designed to \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"144\"\u003ework with any factory exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"174\"\u003eequipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eFeatures:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"18\"\u003eMandrel Bent 3\" Tubing\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"18\"\u003e — Consistent \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"56\"\u003ediameter throughout for maximum exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"96\"\u003eflow\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"96\"\u003eTrue Dual X-Pipe System\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"96\"\u003e — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"133\"\u003eBalances exhaust pulses between banks \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"171\"\u003efor improved tone and mid-range power\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"213\"\u003eInsulated Bullet Style Blow-Through Mufflers\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"213\"\u003e — Deep, aggressive exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"287\"\u003etone with straight-through flow\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"323\"\u003eAxle Exit Design\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"323\"\u003e — Clean, tucked \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"358\"\u003eexit at the rear axle\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"384\"\u003eConnects to Factory Hanger Locations\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"420\"\u003e — No custom hanger fabrication \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"454\"\u003erequired on single cab, short bed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"488\"\u003etrucks\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"488\"\u003eOptional Wideband O₂ Bung\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"488\"\u003e \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"527\"\u003e— Available for wideband sensor \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"559\"\u003eplacement for tuning applications\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"597\"\u003e3\" Stainless Band Clamps Included\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"637\"\u003e304 Natural Stainless Steel Construction\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"637\"\u003e — Corrosion resistant, heat \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"708\"\u003etolerant, and built to last\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"740\"\u003eCompatible with 4, 6, and 8 Speed Automatic Transmissions\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"804\"\u003eCompatible with 4.8L, 5.3L, 6.0L, and 6.2L V8 Engines\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"804\"\u003eV8 Engines Only\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"886\"\u003eDyno Proven\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eVehicle Applications:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003ePrimary fit: Single Cab, Short Bed (119\" wheelbase) — 1999–2018.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003e Will fit \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003elonger bed options by extending \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"112\"\u003econnection pipes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eChevrolet Silverado 1500 (2WD\/4WD) — Single Cab, Short Bed\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e1999 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"107\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"147\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"147\"\u003e2000 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"183\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"217\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"217\"\u003e2001 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"256\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"283\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"323\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"323\"\u003e2002 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"359\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"393\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"393\"\u003e2003 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"432\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"459\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"499\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"499\"\u003e2004 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"535\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"569\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"569\"\u003e2005 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"608\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"635\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"675\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"675\"\u003e2006 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"711\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"745\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"745\"\u003e2007 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"784\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"811\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"851\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"884\"\u003e2008 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"924\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"958\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"958\"\u003e2009 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"997\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1024\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1064\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1064\"\u003e2010 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1100\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1134\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1134\"\u003e2011 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1173\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1200\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1240\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1240\"\u003e2012 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1276\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1310\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1310\"\u003e2013 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1349\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1376\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1416\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1416\"\u003e2014 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1452\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1486\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1486\"\u003e2015 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1525\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1552\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1592\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1592\"\u003e2016 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1628\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1662\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1662\"\u003e2017 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1701\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1728\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1768\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1768\"\u003e2018 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1804\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1838\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eGMC Sierra 1500 (2WD\/4WD) — Single Cab, Short Bed\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e1999 GMC Sierra 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"77\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"111\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"111\"\u003e2000 GMC Sierra \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"151\"\u003e1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"190\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"190\"\u003e2001 GMC Sierra \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"230\"\u003e1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"269\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"269\"\u003e2002 GMC \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"302\"\u003eSierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"326\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"366\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"366\"\u003e2003 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"405\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"445\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"445\"\u003e2004 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"484\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"524\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"524\"\u003e2005 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"563\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"603\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"603\"\u003e2006 GMC Sierra 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"630\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"664\"\u003eSingle Cab, Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"664\"\u003e2007 GMC Sierra \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"704\"\u003e1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"743\"\u003eSingle Cab, Short Bed \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"777\"\u003e2008 GMC \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"813\"\u003eSierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"837\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"877\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"877\"\u003e2009 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"916\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"956\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"956\"\u003e2010 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"995\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1035\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1035\"\u003e2011 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1074\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1114\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1114\"\u003e2012 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1153\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1193\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1193\"\u003e2013 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1232\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1272\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1272\"\u003e2014 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1311\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1351\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1351\"\u003e2015 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1390\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1430\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1430\"\u003e2016 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1469\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1509\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1509\"\u003e2017 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1548\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1588\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1588\"\u003e2018 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1627\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1667\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eWheelbase Compatibility:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003eNote:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003e This system has also been \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"38\"\u003eused on SUV and other GM truck \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"69\"\u003ewheelbase applications. These require \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"107\"\u003elengthening, shortening, and hanger \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"143\"\u003erelocation modifications by the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"175\"\u003einstaller.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e1999–2018 GM Truck (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e119\" — Reg Cab, Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"79\"\u003eBed (primary fit, no modification)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"116\"\u003e133\" — Reg Cab, Long Bed (order \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"148\"\u003eExt\/Crew Cab kit and modify)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"148\"\u003e143.5\" — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"188\"\u003eCrew Cab 5'8\" Short Bed \u0026amp; Extra Cab 6' \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"227\"\u003eShort Bed (fits with this kit)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"227\"\u003e153\" — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"267\"\u003eCrew Cab, Reg Bed (order and modify \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"303\"\u003epart 25-1003)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"303\"\u003e157.5\" — Ext Cab, Long \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"342\"\u003eBed (order and modify part 25-1003)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"380\"\u003e167\" — Crew Cab, Long Bed (order and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"417\"\u003emodify part 25-1005)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e1999–2018 GM SUV (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e116\" — Order and modify \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"79\"\u003eReg Cab kit\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"79\"\u003e130\" (XL) — Order and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"115\"\u003emodify Ext\/Crew Cab kit\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e2002–2013 Chevrolet Avalanche (EXT)\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"42\"\u003e130\" — Order and modify Ext\/Crew Cab \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"79\"\u003ekit\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eFrequently Asked Questions:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Will this system work with my factory exhaust manifolds?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eNo. This system \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003eis designed to work with Speed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"111\"\u003eEngineering 1999–2018 truck and SUV \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"147\"\u003elongtube headers only. It is not \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"180\"\u003edesigned to work with any factory \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"214\"\u003eexhaust equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What is the difference between this system and the single cab rear-exit system (25-1006)?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eBoth are designed for \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"119\"\u003ethe same 1999–2018 single cab, short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"156\"\u003ebed trucks (119\" wheelbase). This \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"190\"\u003esystem exits at the rear axle for a \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"226\"\u003ecleaner, more tucked profile and uses \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"264\"\u003einsulated bullet style mufflers. The \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"301\"\u003erear-exit version exits further back \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"338\"\u003eand uses full size insulated \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"367\"\u003eblow-through mufflers. Choose based on \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"406\"\u003eyour preferred exit location and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"439\"\u003emuffler style.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What wheelbase does this system fit without modification?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eThis system is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003edesigned for single cab, short bed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"115\"\u003etrucks with a 119\" wheelbase and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"148\"\u003econnects directly to factory hanger \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"184\"\u003elocations. It also fits 143.5\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"215\"\u003ewheelbase Crew Cab 5'8\" Short Bed and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"253\"\u003eExtra Cab 6' Short Bed configurations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Will this fit my Crew Cab or longer bed truck?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eIt depends on your \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"73\"\u003ewheelbase. Some configurations fit this \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"113\"\u003ekit directly, while others require \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"148\"\u003eordering additional parts (25-1003 or \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"186\"\u003e25-1005) and modifying the connection \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"224\"\u003epipes, hangers, and overall length. See \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"264\"\u003ethe wheelbase compatibility chart for \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"302\"\u003eyour specific configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Will this fit my Tahoe, Yukon, or Suburban?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eThis system has been used on \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003eSUV applications but requires \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"110\"\u003elengthening, shortening, and hanger \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"146\"\u003erelocation modifications by the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"178\"\u003einstaller. It is not a direct, \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"209\"\u003eunmodified fit for SUVs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What transmissions does this system work with?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eThis system is compatible \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003ewith 4, 6, and 8 speed automatic \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"113\"\u003etransmissions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Is a wideband O₂ bung included?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eA\u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"40\"\u003en optional wideband O₂ bung is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"71\"\u003eavailable for wideband sensor placement \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"111\"\u003efor tuning applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What mufflers does this system use?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eInsulated bullet style blow-through \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"79\"\u003emufflers for a deep, aggressive exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"119\"\u003etone with straight-through flow design.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What material is this system made from?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e304 natural stainless steel with \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003emandrel-bent tubing and TIG-welded \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"115\"\u003econstruction. 3\" stainless band clamps \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"154\"\u003eare included.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Is this system street legal?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eNo. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"40\"\u003eThis is a race-only product intended \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"77\"\u003efor closed-course competition use only. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"117\"\u003eInstallation on a street-driven vehicle \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"157\"\u003emay violate the Clean Air Act (42 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"191\"\u003eU.S.C. 7522(a)(3)).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e⚠️ \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"7\"\u003eRace Use Only:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"7\"\u003e This product is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"40\"\u003emanufactured and sold for installation \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"79\"\u003eon vehicles used solely for \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"107\"\u003ecompetition. Once installed, the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"140\"\u003evehicle may not be used, registered, or \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"180\"\u003elicensed for use on a public road or \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"217\"\u003ehighway. Installation on a \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"244\"\u003estreet-driven vehicle may violate the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"282\"\u003eClean Air Act 203(a)(3), 42 U.S.C. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"317\"\u003e7522(a)(3).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228206637104,"sku":"25-1006","price":599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1999_2019_Silverado_Sierra_True_Dual_Exhaust_System_Single_Cab_Axle_Exit_25-1006.png?v=1762210741"},{"product_id":"speed-engineering-2007-2019-silverado-sierra-true-dual-exhaust-system-crew-extra-cab-rear-exit","title":"Speed Engineering True Dual Exhaust System — 2007–2018 Chevrolet Silverado \u0026 GMC Sierra | Crew Cab \u0026 Extra Cab Rear Exit | 25-1006","description":"\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"0\"\u003eLooking to \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"11\"\u003ecomplete your true dual exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"43\"\u003ebuild on your GMT900 or \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"67\"\u003eK2XX Silverado or Sierra Crew Cab \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"101\"\u003eor Extra Cab with a system \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"128\"\u003ethat connects to factory \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"153\"\u003ehanger locations? Speed Engineering's \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"191\"\u003etrue dual exhaust system is built from \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"230\"\u003e3\" mandrel bent 304 natural stainless \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"268\"\u003esteel with full size insulated \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"299\"\u003eblow-through mufflers, a true dual \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"334\"\u003eX-pipe crossover, and 3\" stainless band \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"374\"\u003eclamps included. Designed for 2007–2018 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"414\"\u003eCrew Cab 5'8\" Short Bed and Extra Cab \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"452\"\u003e6' Short Bed trucks (143.5\" wheelbase) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"491\"\u003eand connects directly to factory hanger \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"531\"\u003elocations, exiting at the rear of the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"569\"\u003evehicle for an aggressive look and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"604\"\u003etone. An optional wideband O₂ bung is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"642\"\u003eavailable for tuning applications. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"677\"\u003eCompatible with 4, 6, and 8 speed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"711\"\u003eautomatic transmissions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e⚠️ \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"7\"\u003eImportant:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"7\"\u003e This system is designed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"44\"\u003eto work with Speed Engineering \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"75\"\u003e2007–2018 truck and SUV longtube \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"108\"\u003eheaders only. It is NOT designed to \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"144\"\u003ework with any factory exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"174\"\u003eequipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eFeatures:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"18\"\u003eMandrel Bent 3\" Tubing\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"18\"\u003e — Consistent \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"56\"\u003ediameter throughout for maximum exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"96\"\u003eflow\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"96\"\u003eTrue Dual X-Pipe System\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"96\"\u003e — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"133\"\u003eBalances exhaust pulses between banks \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"171\"\u003efor improved tone and mid-range power\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"213\"\u003eFull Size Insulated Blow-Through Mufflers\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"213\"\u003e — Deep, aggressive exhaust tone \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"289\"\u003ewith straight-through flow\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"320\"\u003eRear Exit Design\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"320\"\u003e — Exits at the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"354\"\u003erear of the vehicle for an aggressive \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"392\"\u003eappearance and tone\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"416\"\u003eConnects to Factory Hanger Locations\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"452\"\u003e — No custom hanger fabrication \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"486\"\u003erequired on Crew Cab\/Extra Cab Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"523\"\u003eBed trucks\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"538\"\u003eOptional Wideband O₂ Bung\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"538\"\u003e — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"568\"\u003eAvailable for wideband sensor placement \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"608\"\u003efor tuning applications\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"636\"\u003e3\" Stainless Band Clamps Included\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"676\"\u003e304 Natural Stainless Steel Construction\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"676\"\u003e — Corrosion resistant, heat \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"747\"\u003etolerant, and built to last\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"779\"\u003eCompatible with 4, 6, and 8 Speed Automatic Transmissions\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"843\"\u003eCompatible with 4.8L, 5.3L, 6.0L, and 6.2L V8 Engines\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"843\"\u003eV8 Engines Only\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"925\"\u003eDyno Proven\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eVehicle Applications:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003ePrimary fit: Crew Cab 5'8\" Short Bed \u0026amp; Extra Cab 6' Short Bed (143.5\" wheelbase) — 2007–2018.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003e Will fit longer bed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"120\"\u003eoptions by extending connection pipes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eChevrolet Silverado 1500 (2WD\/4WD) — Crew Cab Short Bed \/ Extra Cab Short Bed\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e2007 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"114\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"153\"\u003eCab 5'8\" Short Bed \/ Extra Cab 6' Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"193\"\u003eBed ⚠️ New body style only — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"222\"\u003eNOT Classic\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"222\"\u003e2008 Chevrolet Silverado \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"261\"\u003e1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"278\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"314\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"351\"\u003e2009 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"391\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"429\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"466\"\u003e2010 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"506\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"544\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"581\"\u003e2011 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"621\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"659\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"696\"\u003e2012 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"736\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"774\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"811\"\u003e2013 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"851\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"875\"\u003eCrew Cab 5'8\" Short Bed \/ Extra Cab 6' \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"914\"\u003eShort Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"914\"\u003e2014 Chevrolet Silverado \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"951\"\u003e1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"990\"\u003eCrew Cab 5'8\" Short Bed \/ \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1016\"\u003eExtra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1016\"\u003e2015 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1056\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1083\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1119\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1156\"\u003e2016 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1186\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1225\"\u003eCab 5'8\" Short Bed \/ Extra Cab 6' Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1265\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1265\"\u003e2017 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1301\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1340\"\u003eCab 5'8\" Short Bed \/ Extra Cab 6' Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1380\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1380\"\u003e2018 Chevrolet Silverado 1500 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1416\"\u003e(2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1455\"\u003eCab 5'8\" Short Bed \/ Extra Cab 6' Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1495\"\u003eBed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eGMC Sierra 1500 (2WD\/4WD) — Crew Cab Short Bed \/ Extra Cab Short Bed\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e2007 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003eGMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"108\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"144\"\u003eShort Bed \/ Extra Cab 6' Short Bed ⚠️ \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"182\"\u003eNew body style only — NOT Classic\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"218\"\u003e2008 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"251\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"287\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"324\"\u003e2009 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"357\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"393\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"430\"\u003e2010 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"463\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"499\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"536\"\u003e2011 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"569\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"605\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"642\"\u003e2012 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"675\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"711\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"748\"\u003e2013 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"781\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"817\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"854\"\u003e2014 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"887\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"923\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"960\"\u003e2015 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"993\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1029\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1066\"\u003e2016 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1099\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1135\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1172\"\u003e2017 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1205\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1241\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1278\"\u003e2018 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1311\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"1347\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eWheelbase Compatibility:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003eNote:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003e This system has also been \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"38\"\u003eused on SUV and other GM truck \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"69\"\u003ewheelbase applications. These require \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"107\"\u003elengthening, shortening, and hanger \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"143\"\u003erelocation modifications by the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"175\"\u003einstaller.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eGM Truck (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e119\" — Reg Cab, Short Bed (order \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003eand modify Reg Cab kit)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003e133\" — Reg \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"117\"\u003eCab, Long Bed (order Ext\/Crew Cab kit \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"155\"\u003eand modify)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"155\"\u003e143.5\" — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"192\"\u003eShort Bed \u0026amp; Extra Cab 6' Short Bed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"227\"\u003e(primary fit, no modification)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"227\"\u003e153\" — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"267\"\u003eCrew Cab, Reg Bed (order and modify \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"303\"\u003epart 25-1003)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"303\"\u003e157.5\" — Ext Cab, Long \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"342\"\u003eBed (order and modify part 25-1003)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"380\"\u003e167\" — Crew Cab, Long Bed (order and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"417\"\u003emodify part 25-1005)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eGM SUV (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e116\" — Order and modify Reg Cab \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"77\"\u003ekit\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"77\"\u003e130\" (XL) — Order and modify this \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"117\"\u003ekit\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e2002–2013 Chevrolet Avalanche (EXT)\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"42\"\u003e130\" — Order and modify this kit\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eFrequently Asked Questions:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Will this system work with my factory exhaust manifolds?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eNo. This system \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003eis designed to work with Speed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"111\"\u003eEngineering 2007–2018 truck and SUV \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"147\"\u003elongtube headers only. It is not \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"180\"\u003edesigned to work with any factory \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"214\"\u003eexhaust equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What is the difference between this system and the 1999–2006 Crew\/Extra Cab rear-exit system (25-1006)?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eBoth \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"116\"\u003eshare the same cab configuration (Crew \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"155\"\u003eCab 5'8\" Short Bed and Extra Cab 6' \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"191\"\u003eShort Bed, 143.5\" wheelbase) and use \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"228\"\u003efull size insulated blow-through \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"261\"\u003emufflers with a rear-exit design. This \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"300\"\u003eversion is built for the 2007–2018 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"335\"\u003eGMT900\/K2XX longtube headers, while the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"375\"\u003eearlier version is built for 1999–2006 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"414\"\u003eGMT800 longtube headers. Make sure to \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"452\"\u003eselect the version that matches your \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"489\"\u003etruck's generation and header set.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Will this fit the 2007 Classic Silverado or Sierra?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eNo. This system is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"78\"\u003efor the 2007 new body style (GMT900) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"115\"\u003eonly. 2007 Classic (GMT800 carry-over) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"154\"\u003eowners should use the 1999–2006 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"186\"\u003eCrew\/Extra Cab rear-exit system \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"218\"\u003einstead.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What wheelbase does this system fit without modification?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eThis system is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003edesigned for Crew Cab 5'8\" Short Bed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"117\"\u003eand Extra Cab 6' Short Bed trucks with \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"156\"\u003ea 143.5\" wheelbase and connects \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"188\"\u003edirectly to factory hanger locations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Will this fit my Reg Cab Short Bed truck?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eNot without modification. Reg \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"79\"\u003eCab Short Bed (119\" wheelbase) trucks \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"117\"\u003erequire ordering and modifying the Reg \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"156\"\u003eCab kit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Will this fit my Tahoe, Yukon, or Suburban?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eThis system has been used on \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003eSUV applications but requires \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"110\"\u003elengthening, shortening, and hanger \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"146\"\u003erelocation modifications by the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"178\"\u003einstaller. It is not a direct, \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"209\"\u003eunmodified fit for SUVs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What transmissions does this system work with?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eThis system is compatible \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003ewith 4, 6, and 8 speed automatic \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"113\"\u003etransmissions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Is a wideband O₂ bung included?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eA\u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"40\"\u003en optional wideband O₂ bung is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"71\"\u003eavailable for wideband sensor placement \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"111\"\u003efor tuning applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What mufflers does this system use?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eFull size insulated blow-through \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"76\"\u003emufflers for a deep, aggressive exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"116\"\u003etone with straight-through flow design.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What material is this system made from?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e304 natural stainless steel with \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003emandrel-bent tubing and TIG-welded \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"115\"\u003econstruction. 3\" stainless band clamps \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"154\"\u003eare included.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Is this system street legal?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eNo. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"40\"\u003eThis is a race-only product intended \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"77\"\u003efor closed-course competition use only. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"117\"\u003eInstallation on a street-driven vehicle \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"157\"\u003emay violate the Clean Air Act (42 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"191\"\u003eU.S.C. 7522(a)(3)).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e⚠️ \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"7\"\u003eRace Use Only:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"7\"\u003e This product is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"40\"\u003emanufactured and sold for installation \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"79\"\u003eon vehicles used solely for \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"107\"\u003ecompetition. Once installed, the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"140\"\u003evehicle may not be used, registered, or \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"180\"\u003elicensed for use on a public road or \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"217\"\u003ehighway. Installation on a \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"244\"\u003estreet-driven vehicle may violate the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"282\"\u003eClean Air Act 203(a)(3), 42 U.S.C. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"317\"\u003e7522(a)(3).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228213518384,"sku":"25-1006","price":689.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2007_2019_Silverado_Sierra_True_Dual_Exhaust_System_Crew_Extra_Cab_Rear_Exit_25-1006.png?v=1762210863"},{"product_id":"speed-engineering-2007-2019-silverado-sierra-true-dual-exhaust-system-crew-extra-cab-axle-exit","title":"Speed Engineering True Dual Exhaust System — 2007–2018 Chevrolet Silverado \u0026 GMC Sierra | Crew Cab \u0026 Extra Cab Axle Exit | 25-1006","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eLooking to complete your true dual exhaust build on your GMT900 or K2XX Silverado or Sierra Crew Cab or Extra Cab with an axle-exit system that connects to factory hanger locations? Speed Engineering's true dual exhaust system is built from 3\" mandrel bent 304 natural stainless steel with insulated bullet style blow-through mufflers, a true dual X-pipe crossover, and 3\" stainless band clamps included. Designed for 2007–2018 Crew Cab 5'8\" Short Bed and Extra Cab 6' Short Bed trucks (143.5\" wheelbase) and connects directly to factory hanger locations, exiting at the rear axle for a clean, tucked profile. An optional wideband O₂ bung is available for tuning applications. Compatible with 4, 6, and 8 speed automatic transmissions.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e This system is designed to work with Speed Engineering 2007–2018 truck and SUV longtube headers only. It is NOT designed to work with any factory exhaust equipment.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent 3\" Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrue Dual X-Pipe System\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eInsulated Bullet Style Blow-Through Mufflers\u003c\/strong\u003e — Deep, aggressive exhaust tone with straight-through flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eAxle Exit Design\u003c\/strong\u003e — Clean, tucked exit at the rear axle\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eConnects to Factory Hanger Locations\u003c\/strong\u003e — No custom hanger fabrication required on Crew Cab\/Extra Cab Short Bed trucks\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eOptional Wideband O₂ Bung\u003c\/strong\u003e — Available for wideband sensor placement for tuning applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Stainless Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4, 6, and 8 Speed Automatic Transmissions\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4.8L, 5.3L, 6.0L, and 6.2L V8 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003ePrimary fit: Crew Cab 5'8\" Short Bed \u0026amp; Extra Cab 6' Short Bed (143.5\" wheelbase) — 2007–2018.\u003c\/strong\u003e Will fit longer bed options by extending connection pipes.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD) — Crew Cab Short Bed \/ Extra Cab Short Bed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed ⚠️ New body style only — NOT Classic\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD) — Crew Cab Short Bed \/ Extra Cab Short Bed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed ⚠️ New body style only — NOT Classic\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eWheelbase Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This system has also been used on SUV and other GM truck wheelbase applications. These require lengthening, shortening, and hanger relocation modifications by the installer.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGM Truck (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e119\" — Reg Cab, Short Bed (order and modify Reg Cab kit)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e133\" — Reg Cab, Long Bed (order Ext\/Crew Cab kit and modify)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e143.5\" — Crew Cab 5'8\" Short Bed \u0026amp; Extra Cab 6' Short Bed (primary fit, no modification)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e153\" — Crew Cab, Reg Bed (order and modify part 25-1003)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e157.5\" — Ext Cab, Long Bed (order and modify part 25-1003)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e167\" — Crew Cab, Long Bed (order and modify part 25-1005)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGM SUV (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e116\" — Order and modify Reg Cab kit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e130\" (XL) — Order and modify this kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e2002–2013 Chevrolet Avalanche (EXT)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e130\" — Order and modify this kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this system work with my factory exhaust manifolds?\u003c\/strong\u003e\u003cbr\u003eNo. This system is designed to work with Speed Engineering 2007–2018 truck and SUV longtube headers only. It is not designed to work with any factory exhaust equipment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between this system and the 2007–2018 Crew\/Extra Cab rear-exit system (25-1006)?\u003c\/strong\u003e\u003cbr\u003eBoth share the same cab configuration (Crew Cab 5'8\" Short Bed and Extra Cab 6' Short Bed, 143.5\" wheelbase). This system exits at the rear axle for a cleaner, more tucked profile and uses insulated bullet style mufflers. The rear-exit version exits further back and uses full size insulated blow-through mufflers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between this system and the 1999–2006 Crew\/Extra Cab axle-exit system (25-1006)?\u003c\/strong\u003e\u003cbr\u003eBoth share the same cab configuration and axle-exit design with insulated bullet style mufflers. This version is built for 2007–2018 GMT900\/K2XX longtube headers, while the earlier version is built for 1999–2006 GMT800 longtube headers. Select the version matching your truck's generation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this fit the 2007 Classic Silverado or Sierra?\u003c\/strong\u003e\u003cbr\u003eNo. This system is for the 2007 new body style (GMT900) only. 2007 Classic owners should use the 1999–2006 Crew\/Extra Cab axle-exit system instead.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this fit my Reg Cab Short Bed truck?\u003c\/strong\u003e\u003cbr\u003eNot without modification. Reg Cab Short Bed (119\" wheelbase) trucks require ordering and modifying the Reg Cab kit.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this fit my Tahoe, Yukon, or Suburban?\u003c\/strong\u003e\u003cbr\u003eThis system has been used on SUV applications but requires lengthening, shortening, and hanger relocation modifications by the installer.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What transmissions does this system work with?\u003c\/strong\u003e\u003cbr\u003eThis system is compatible with 4, 6, and 8 speed automatic transmissions.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is a wideband O₂ bung included?\u003c\/strong\u003e\u003cbr\u003eAn optional wideband O₂ bung is available for wideband sensor placement for tuning applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What mufflers does this system use?\u003c\/strong\u003e\u003cbr\u003eInsulated bullet style blow-through mufflers for a deep, aggressive exhaust tone with straight-through flow design.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material is this system made from?\u003c\/strong\u003e\u003cbr\u003e304 natural stainless steel with mandrel-bent tubing and TIG-welded construction. 3\" stainless band clamps are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is this system street legal?\u003c\/strong\u003e\u003cbr\u003eNo. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228220432432,"sku":"25-1006","price":614.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2007_2019_Silverado_Sierra_True_Dual_Exhaust_System_Crew_Extra_Cab_Axle_Exit_25-1006.png?v=1762211019"},{"product_id":"speed-engineering-1999-2019-silverado-sierra-true-dual-exhaust-system-single-cab-rear-exit","title":"Speed Engineering True Dual Exhaust System — 1999–2018 Chevrolet Silverado \u0026 GMC Sierra | Single Cab, Short Bed Rear Exit | 25-1006","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eLooking to complete your true dual exhaust build on your Silverado or Sierra with a system that connects to factory hanger locations? Speed Engineering's true dual exhaust system is built from 3\" mandrel bent 304 natural stainless steel with full size insulated blow-through mufflers, a true dual X-pipe crossover, and 3\" stainless band clamps included. Designed for 1999–2018 single cab, short bed trucks (119\" wheelbase) and connects directly to factory hanger locations. An optional wideband O₂ bung is available for tuning applications. Compatible with 4, 6, and 8 speed automatic transmissions.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e This system is designed to work with Speed Engineering 1999–2018 truck and SUV longtube headers only. It is NOT designed to work with any factory exhaust equipment.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent 3\" Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrue Dual X-Pipe System\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull Size Insulated Blow-Through Mufflers\u003c\/strong\u003e — Deep, aggressive exhaust tone with straight-through flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eConnects to Factory Hanger Locations\u003c\/strong\u003e — No custom hanger fabrication required on single cab, short bed trucks\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eOptional Wideband O₂ Bung\u003c\/strong\u003e — Available for wideband sensor placement for tuning applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Stainless Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4, 6, and 8 Speed Automatic Transmissions\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4.8L, 5.3L, 6.0L, and 6.2L V8 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003ePrimary fit: Single Cab, Short Bed (119\" wheelbase) — 1999–2018.\u003c\/strong\u003e Will fit longer bed options by extending connection pipes.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD) — Single Cab, Short Bed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed ⚠️ New body style only — NOT Classic\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD) — Single Cab, Short Bed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed \u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Single Cab, Short Bed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eWheelbase Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This system has also been used on SUV and other GM truck wheelbase applications. These require lengthening, shortening, and hanger relocation modifications by the installer.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e1999–2018 GM Truck (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e119\" — Reg Cab, Short Bed (primary fit, no modification)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e133\" — Reg Cab, Long Bed (order Ext\/Crew Cab kit and modify)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e143.5\" — Crew Cab 5'8\" Short Bed \u0026amp; Extra Cab 6' Short Bed (fits with this kit)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e153\" — Crew Cab, Reg Bed (order and modify part 25-1003)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e157.5\" — Ext Cab, Long Bed (order and modify part 25-1003)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e167\" — Crew Cab, Long Bed (order and modify part 25-1005)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e1999–2018 GM SUV (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e116\" — Order and modify Reg Cab kit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e130\" (XL) — Order and modify Ext\/Crew Cab kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e2002–2013 Chevrolet Avalanche (EXT)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e130\" — Order and modify Ext\/Crew Cab kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this system work with my factory exhaust manifolds?\u003c\/strong\u003e\u003cbr\u003eNo. This system is designed to work with Speed Engineering 1999–2018 truck and SUV longtube headers only. It is not designed to work with any factory exhaust equipment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What wheelbase does this system fit without modification?\u003c\/strong\u003e\u003cbr\u003eThis system is designed for single cab, short bed trucks with a 119\" wheelbase and connects directly to factory hanger locations. It also fits 143.5\" wheelbase Crew Cab 5'8\" Short Bed and Extra Cab 6' Short Bed configurations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this fit my Crew Cab or longer bed truck?\u003c\/strong\u003e\u003cbr\u003eIt depends on your wheelbase. Some configurations fit this kit directly, while others require ordering additional parts (25-1003 or 25-1005) and modifying the connection pipes, hangers, and overall length. See the wheelbase compatibility chart for your specific configuration.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this fit my Tahoe, Yukon, or Suburban?\u003c\/strong\u003e\u003cbr\u003eThis system has been used on SUV applications but requires lengthening, shortening, and hanger relocation modifications by the installer. It is not a direct, unmodified fit for SUVs.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What transmissions does this system work with?\u003c\/strong\u003e\u003cbr\u003eThis system is compatible with 4, 6, and 8 speed automatic transmissions.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is a wideband O₂ bung included?\u003c\/strong\u003e\u003cbr\u003eAn optional wideband O₂ bung is available for wideband sensor placement for tuning applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What mufflers does this system use?\u003c\/strong\u003e\u003cbr\u003eFull size insulated blow-through mufflers for a deep, aggressive exhaust tone with straight-through flow design.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material is this system made from?\u003c\/strong\u003e\u003cbr\u003e304 natural stainless steel with mandrel-bent tubing and TIG-welded construction. 3\" stainless band clamps are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is this system street legal?\u003c\/strong\u003e\u003cbr\u003eNo. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228225806384,"sku":"25-1006","price":679.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1999_2019_Silverado_Sierra_True_Dual_Exhaust_System_Single_Cab_Rear_Exit_25-1006.png?v=1762211145"},{"product_id":"speed-engineering-2007-2024-silverado-sierra-3-5in-single-exhaust-system","title":"Speed Engineering 3.5\" Single Exhaust System — 2007–2024 Chevrolet Silverado \u0026 GMC Sierra 1500 | 25-1072","description":"\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eIf you're looking for a clean, well-built single exhaust upgrade for your Silverado or Sierra, Speed Engineering's 3.5\" system delivers real improvement in flow, tone, and durability over the factory setup. Built from 304 natural stainless steel with mandrel-bent tubing and TIG-welded construction, this system connects to factory hanger locations and includes both an axle exit tip and an over-axle rear exit tip so you can choose your preferred exit style.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eDyno proven and designed to work with Speed Engineering's 1-3\/4\" and 1-7\/8\" longtube headers and Y-pipe. Will adapt to 3.5\" factory exhaust systems with fabrication.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eKit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e3.5\" Mandrel Bent 304 Stainless Steel Tubing\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFull Size Insulated Blow-Through Muffler\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAxle Exit Tip\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eOver-Axle Rear Exit Tip\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e3.5\" Stainless Band Clamps\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eConnects to Factory Hanger Locations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3.5\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull Size Insulated Blow-Through Muffler\u003c\/strong\u003e — Deep tone without drone\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eBoth Exit Tips Included\u003c\/strong\u003e — Axle exit and over-axle rear exit tip included in every kit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eConnects to Factory Hanger Locations\u003c\/strong\u003e — No custom fabrication required for standard applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4, 6, 8, and 10 Speed Automatic Transmissions\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4.8L, 5.3L, 6.0L, and 6.2L Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDesigned to Work with Speed Engineering 1-3\/4\" and 1-7\/8\" Longtube Headers and Y-Pipe\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eImportant Fitment Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eShort bed only\u003c\/strong\u003e — fits Single, Crew, and Extra Cab configurations with short bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWill NOT fit the 2007 Classic body style\u003c\/strong\u003e — 2007 Classic owners need to purchase 1999–2006 exhaust products instead\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e2019–2024 models\u003c\/strong\u003e with factory rear-exiting bumper exhaust will require modification to work with this system\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLonger bed configurations\u003c\/strong\u003e can be accommodated by extending the connection pipes\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSUV and non-standard wheelbase applications\u003c\/strong\u003e will require lengthening, shortening, and hanger relocation modifications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eAdapts to 3.5\" factory exhaust systems\u003c\/strong\u003e but fabrication is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWheelbase Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e119 in — Regular Cab Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e143.5 in — Crew Cab 5'8\" Short Bed \u0026amp; Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD) — Short Bed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ New body style only, not Classic\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Silverado 1500 Classic (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2020 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2021 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2024 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD) — Short Bed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ New body style only, not Classic\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 GMC Sierra 1500 Classic (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2020 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2021 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2024 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ Factory rear exit bumper exhaust requires modification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Does this exhaust system work with Speed Engineering longtube headers?\u003c\/strong\u003e Yes. This system is designed to work with Speed Engineering's 1-3\/4\" and 1-7\/8\" truck longtube headers and Y-pipe. It will also adapt to 3.5\" factory exhaust systems but fabrication will be required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Which cab and bed configurations does this fit?\u003c\/strong\u003e This system fits Single Cab, Crew Cab, and Extra Cab configurations with a short bed only. It is not designed for long bed trucks without extending the connection pipes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this fit my 2007 Silverado or Sierra?\u003c\/strong\u003e Only if your 2007 is the new body style. The 2007 Classic body style is not compatible — Classic owners need to purchase 1999–2006 exhaust products instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Does this work on 2019–2024 models with factory rear exit bumper exhaust?\u003c\/strong\u003e It can be modified to work with factory rear-exiting bumper exhaust on 2019–2024 models, but modification is required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What exit tip options are included?\u003c\/strong\u003e Both an axle exit tip and an over-axle rear exit tip are included in every kit, giving you the choice of exit style at installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What transmissions is this compatible with?\u003c\/strong\u003e This system is compatible with 4, 6, 8, and 10 speed automatic transmissions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this fit my SUV or long bed truck?\u003c\/strong\u003e SUV and non-standard wheelbase applications are possible but will require lengthening, shortening, and hanger relocation modifications. Long bed configurations can be accommodated by extending the connection pipes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines is this compatible with?\u003c\/strong\u003e This system is compatible with 4.8L, 5.3L, 6.0L, and 6.2L engines found in 2007–2024 Chevrolet Silverado and GMC Sierra 1500 models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228228329520,"sku":"25-1072","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2007_2024_Silverado_Sierra_3.5_Single_Exhaust_System_25-1072.png?v=1762211266"},{"product_id":"speed-engineering-2007-2013-silverado-sierra-1-7-8in-longtube-headers","title":"Speed Engineering 1-7\/8\" Longtube Headers — 2007–2013 Chevrolet Silverado \u0026 GMC Sierra 1500 | 4.8L\/5.3L\/6.0L\/6.2L | 25-1009","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your GMT900 Silverado, Sierra, or full-size SUV are one of the first restrictions holding back your LS engine. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 25 rear-wheel horsepower over stock.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, merge spikes, and full TIG-welded construction.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWill NOT fit the 2007 Classic body style\u003c\/strong\u003e — 2007 Classic owners need to purchase 1999–2006 exhaust products instead\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eY-pipe installation\u003c\/strong\u003e — works with 6 speed automatic transmissions. Depending on factory exhaust type, some cutting or welding may be required for Y-pipe install\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Primary Tubes with Merge Spike\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on 4.8L, 5.3L, 6.0L, and 6.2L applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4.8L, 5.3L, 6.0L, and 6.2L LS V8 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ New body style only, not Classic\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ New body style only, not Classic\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Tahoe (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Yukon (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac Escalade (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac Escalade EXT (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Avalanche (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 4.8L, 5.3L, 6.0L, and 6.2L LS equipped applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit my 2007 Classic body style Silverado or Sierra?\u003c\/strong\u003e No. These headers are for the new 2007 body style only. 2007 Classic body style owners need to purchase 1999–2006 exhaust products instead.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will a Y-pipe work with my transmission?\u003c\/strong\u003e The Y-pipe works with 6 speed automatic transmissions. Depending on your factory exhaust type, some cutting or welding may be required for proper Y-pipe installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with GM LS V8 engines including 4.8L, 5.3L, 6.0L, and 6.2L found in 2007–2014 Silverado, Sierra, Tahoe, Yukon, Escalade, EXT, and Avalanche applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included with the headers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228252086320,"sku":"25-1009","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2007_2013_Silverado_Sierra_1-7_8_Longtube_Headers_25-1009.png?v=1762213080"},{"product_id":"speed-engineering-2007-2013-silverado-sierra-1-3-4in-longtube-headers","title":"Speed Engineering 1-3\/4\" Longtube Headers — 2007–2013 Chevrolet Silverado \u0026 GMC Sierra GMT900 | 4.8L\/5.3L\/6.0L\/6.2L | 25-1013","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your GMT900 Silverado, Sierra, or full-size SUV are one of the first restrictions holding back your LS engine. Speed Engineering's 1-3\/4\" longtube headers are a direct-fit, dyno-proven upgrade delivering over 25 rear-wheel horsepower over stock with improved throttle response and a deeper, more aggressive exhaust tone. Covers 2007–2013 trucks and SUVs on the new GMT900 body style. Y-pipe sold separately and required for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, merge spikes, CNC-machined flanges, and full TIG-welded construction. Standard graphite manifold gaskets included.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e2007 Classic body style only:\u003c\/strong\u003e These headers will NOT fit the 2007 Classic (carry-over GMT800 body). 2007 Classic owners should purchase 1999–2006 exhaust products instead\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eY-pipe:\u003c\/strong\u003e The Speed Engineering Y-pipe works with 6-speed automatic transmissions. Depending on factory exhaust configuration, some cutting or welding may be required for Y-pipe installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-3\/4\" Primary Tubes with Merge Spikes\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on 4.8L, 5.3L, 6.0L, and 6.2L applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4.8L, 5.3L, 6.0L, and 6.2L LS V8 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ New body style only — NOT Classic\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L ⚠️ New body style only — NOT Classic\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Tahoe (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Yukon (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac Escalade (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Cadillac Escalade (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac Escalade EXT (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Cadillac Escalade EXT (2WD\/4WD) — 6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Avalanche (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit the 2007 Classic Silverado or Sierra?\u003c\/strong\u003e No. The 2007 Classic is a carry-over of the older GMT800 body style. These headers are designed for the 2007 new body style (GMT900) only. 2007 Classic owners should purchase 1999–2006 exhaust products.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is a Y-pipe included?\u003c\/strong\u003e No. These are headers only. The Speed Engineering Y-pipe kit is sold separately and is required for proper installation. The Y-pipe is compatible with 6-speed automatic transmissions. Depending on your factory exhaust configuration, some cutting or welding may be required for Y-pipe installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 1-3\/4\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 2007–2013 GMT900 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with GM LS V8 engines including 4.8L, 5.3L, 6.0L, and 6.2L found in 2007–2013 Silverado, Sierra, and GMT900 full-size SUV applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228252512304,"sku":"25-1013","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2007_2013_Silverado_Sierra_1-3_4_Longtube_Headers_25-1013.png?v=1762213416"},{"product_id":"speed-engineering-1999-2006-silverado-sierra-2in-longtube-headers","title":"Speed Engineering 2\" Longtube Headers — 1999–2006 Chevrolet Silverado \u0026 GMC Sierra | 4.8L\/5.3L\/6.0L LS | 25-1077","description":"\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eLooking to maximize exhaust flow on your GMT800 Silverado, Sierra, or full-size SUV? Speed Engineering's 2\" longtube headers are the most aggressive primary tube option in the GMT800 lineup — delivering maximum exhaust flow for builds with supporting modifications. This is the race version — no air or EGR fittings. Dyno proven to deliver over 25 rear-wheel horsepower over stock manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, and full TIG-welded construction. The revised Y-pipe design now works with both 4L60E and 4L80E transmissions and provides additional clearance for 4WD vehicles.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eRace version — no air or EGR fittings\u003c\/strong\u003e — not compatible with emissions equipment\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSilverado SS\u003c\/strong\u003e — Speed Engineering's Y-pipe is a single outlet and will NOT connect directly to the Silverado SS factory dual inlet cat-back without modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e6.0L applications\u003c\/strong\u003e — most 6.0L trucks have a 2-into-1 factory exhaust system that the Y-pipe will NOT work with. Verify your factory exhaust configuration before purchasing. The X-pipe kit can work on 2-into-1 exhaust systems but will require fabrication for connection\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e4L80E transmission\u003c\/strong\u003e — bellhousing ears may need to be trimmed for proper clearance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eEarlier 2500 models\u003c\/strong\u003e may have fitment issues due to upper control arms being mounted on top of the chassis from previous years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 2\" Primary Tubes\u003c\/strong\u003e — Maximum flow on 4.8L, 5.3L, and 6.0L LS applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eRace Version — No Air or EGR Fittings\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eRevised Y-Pipe Design\u003c\/strong\u003e — Compatible with 4L60E and 4L80E transmissions and provides additional 4WD clearance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on 4.8L, 5.3L, and 6.0L applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4.8L, 5.3L, and 6.0L LS V8 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Tahoe (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Yukon (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac Escalade (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac Escalade EXT (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Avalanche (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What is the difference between these 2\" headers and the 1-7\/8\" headers (25-1011) for this platform?\u003c\/strong\u003e The primary tube diameter is the key difference. The 2\" headers deliver maximum exhaust flow for more aggressive builds with supporting modifications such as a cam, heads, or tune. The 1-7\/8\" headers are a strong choice for most street and performance builds across a broader RPM range.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do these headers have air or EGR fittings?\u003c\/strong\u003e No. These are a race version and do not include air or EGR fittings. They are not compatible with emissions equipment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit my Silverado SS?\u003c\/strong\u003e Speed Engineering's Y-pipe is a single outlet and will not connect directly to the Silverado SS factory dual inlet cat-back without modification.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will a Y-pipe work on my 6.0L truck?\u003c\/strong\u003e Most 6.0L trucks have a 2-into-1 factory exhaust system that the Y-pipe will NOT work with. Verify your factory exhaust configuration before purchasing. The X-pipe kit can be used on 2-into-1 exhaust systems but will require fabrication for the connection.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit with a 4L80E transmission?\u003c\/strong\u003e The revised Y-pipe design is now compatible with 4L60E and 4L80E transmissions. These headers may still require trimming of the bellhousing ears on 4L80E transmissions for proper clearance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit on a 2500 model truck?\u003c\/strong\u003e Earlier 2500 models may have fitment issues due to upper control arms being mounted on top of the chassis from previous years. Verify your specific application before ordering.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with GM LS V8 engines including 4.8L, 5.3L, and 6.0L found in 1999–2006 Silverado, Sierra, Tahoe, Yukon, Escalade, EXT, and Avalanche applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228271681584,"sku":"25-1077","price":379.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1999_2006_Silverado_Sierra_2_Longtube_Headers_25-1077.jpg?v=1762213908"},{"product_id":"speed-engineering-1999-2006-silverado-sierra-1-7-8in-longtube-headers","title":"Speed Engineering 1-7\/8\" Longtube Headers — 1999–2006 Chevrolet Silverado \u0026 GMC Sierra | 4.8L\/5.3L\/6.0L LS | 25-1011","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your GMT800 Silverado, Sierra, or full-size SUV are one of the first restrictions holding back your LS engine. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 25 rear-wheel horsepower over stock. This is the race version — no air or EGR fittings.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, and full TIG-welded construction.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eRace version — no air or EGR fittings\u003c\/strong\u003e — not compatible with emissions equipment\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSilverado SS\u003c\/strong\u003e — these headers are NOT a direct fit to the Silverado SS dual inlet exhaust system. Speed Engineering's Y-pipe is a single outlet and will not connect directly to the Silverado SS factory dual inlet cat-back without modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e6.0L applications\u003c\/strong\u003e — most 6.0L trucks have a 2-into-1 factory exhaust system that the Y-pipe will NOT work with. Verify your factory exhaust configuration before purchasing. The X-pipe kit can work on 2-into-1 exhaust systems but will require fabrication for connection\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e4L80E transmission\u003c\/strong\u003e — bellhousing ears may need to be trimmed for proper clearance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eEarlier 2500 models\u003c\/strong\u003e may have fitment issues due to upper control arms being mounted on top of the chassis from previous years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Primary Tubes\u003c\/strong\u003e — Sized for maximum flow on 4.8L, 5.3L, and 6.0L LS applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eRace Version — No Air or EGR Fittings\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on 4.8L, 5.3L, and 6.0L applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4.8L, 5.3L, and 6.0L LS V8 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Tahoe (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Yukon (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac Escalade (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac Escalade EXT (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Avalanche (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 4.8L, 5.3L, and 6.0L LS equipped applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What is the difference between the 1-3\/4\" and 1-7\/8\" headers for these trucks?\u003c\/strong\u003e The primary tube diameter is the key difference. The 1-3\/4\" headers (25-1012) work well across a broad RPM range and are a strong choice for most street and mild performance builds. The 1-7\/8\" headers offer a step up in flow better suited for more aggressive builds with supporting modifications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do these headers have air or EGR fittings?\u003c\/strong\u003e No. These are a race version and do not include air or EGR fittings. They are not compatible with emissions equipment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit my Silverado SS?\u003c\/strong\u003e These headers are not a direct fit to the Silverado SS factory dual inlet cat-back exhaust system. Speed Engineering's Y-pipe is a single outlet and will not connect directly to the Silverado SS dual inlet cat-back without modification.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will a Y-pipe work on my 6.0L truck?\u003c\/strong\u003e Most 6.0L trucks have a 2-into-1 factory exhaust system that the Y-pipe will NOT work with. Verify your factory exhaust configuration before purchasing. The X-pipe kit can be used on 2-into-1 exhaust systems but will require fabrication for the connection.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit with a 4L80E transmission?\u003c\/strong\u003e These headers may require trimming of the bellhousing ears on 4L80E transmissions for proper clearance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit on a 2500 model truck?\u003c\/strong\u003e Earlier 2500 models may have fitment issues due to upper control arms being mounted on top of the chassis from previous years. Verify your specific application before ordering.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with GM LS V8 engines including 4.8L, 5.3L, and 6.0L found in 1999–2006 Silverado, Sierra, Tahoe, Yukon, Escalade, EXT, and Avalanche applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included with the headers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228272435248,"sku":"25-1011","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1999_2006_Silverado_Sierra_1-7_8_Longtube_Headers_25-1011.png?v=1762214003"},{"product_id":"speed-engineering-1999-2006-silverado-sierra-1-3-4-longtube-headers-4-8l-5-3l-6-0l","title":"Speed Engineering 1-3\/4\" Longtube Headers — 1999–2006 Chevrolet Silverado \u0026 GMC Sierra | 4.8L\/5.3L\/6.0L LS | 25-1012","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your GMT800 Silverado, Sierra, or full-size SUV are one of the first restrictions holding back your LS engine. Speed Engineering's 1-3\/4\" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 25 rear-wheel horsepower over stock. This is the race version — no air or EGR fittings.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, merge spikes, and full TIG-welded construction.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eRace version — no air or EGR fittings\u003c\/strong\u003e — not compatible with emissions equipment\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSilverado SS\u003c\/strong\u003e — these headers are NOT a direct fit to the Silverado SS dual inlet exhaust system. Speed Engineering's Y-pipe is a single outlet and will not connect directly to the Silverado SS factory dual inlet cat-back without modification\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e6.0L applications\u003c\/strong\u003e — most 6.0L trucks have a 2-into-1 factory exhaust system that the Y-pipe will NOT work with. Verify your factory exhaust configuration before purchasing. The X-pipe kit can work on 2-into-1 exhaust systems but will require fabrication for connection\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e4L80E transmission\u003c\/strong\u003e — bellhousing ears may need to be trimmed for proper clearance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eEarlier 2500 models\u003c\/strong\u003e may have fitment issues due to upper control arms being mounted on top of the chassis from previous years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-3\/4\" Primary Tubes with Merge Spikes\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eRace Version — No Air or EGR Fittings\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on 4.8L, 5.3L, and 6.0L applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4.8L, 5.3L, and 6.0L LS V8 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Tahoe (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Tahoe (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Yukon (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 GMC Yukon (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac Escalade (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Cadillac Escalade (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac Escalade EXT (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Cadillac Escalade EXT (2WD\/4WD) — 6.0L ⚠️ Verify factory exhaust configuration — see 6.0L note above\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Avalanche (2WD\/4WD)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Avalanche (2WD\/4WD) — 5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 1-3\/4\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 4.8L, 5.3L, and 6.0L LS equipped applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do these headers have air or EGR fittings?\u003c\/strong\u003e No. These are a race version and do not include air or EGR fittings. They are not compatible with emissions equipment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit my Silverado SS?\u003c\/strong\u003e These headers are not a direct fit to the Silverado SS factory dual inlet cat-back exhaust system. Speed Engineering's Y-pipe is a single outlet and will not connect directly to the Silverado SS dual inlet cat-back without modification.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will a Y-pipe work on my 6.0L truck?\u003c\/strong\u003e Most 6.0L trucks have a 2-into-1 factory exhaust system that the Y-pipe will NOT work with. Verify your factory exhaust configuration before purchasing. The X-pipe kit can be used on 2-into-1 exhaust systems but will require fabrication for the connection.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit with a 4L80E transmission?\u003c\/strong\u003e These headers may require trimming of the bellhousing ears on 4L80E transmissions for proper clearance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit on a 2500 model truck?\u003c\/strong\u003e Earlier 2500 models may have fitment issues due to upper control arms being mounted on top of the chassis from previous years. Verify your specific application before ordering.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with GM LS V8 engines including 4.8L, 5.3L, and 6.0L found in 1999–2006 Silverado, Sierra, Tahoe, Yukon, Escalade, EXT, and Avalanche applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included with the headers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228274204720,"sku":"25-1012","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1999_2006_Silverado_Sierra_1-3_4_Longtube_Headers_4.8L_5.3L_6.0L_25-1012.png?v=1762286340"},{"product_id":"speed-engineering-1999-2006-silverado-sierra-3in-single-exhaust-system","title":"Speed Engineering 3\" Single Exhaust System — 1999–2006 Chevrolet Silverado \u0026 GMC Sierra 1500 | 25-1071","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eLooking for a clean, well-built single exhaust upgrade for your 1999–2006 Silverado or Sierra? Speed Engineering's 3\" system delivers real improvement in flow, tone, and durability over the factory setup. Built from 304 natural stainless steel with mandrel-bent tubing and TIG-welded construction, this system connects to factory hanger locations and includes both an axle exit tip and an over-axle rear exit tip so you can choose your preferred exit style at installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eDyno proven and designed to work with Speed Engineering's 1-3\/4\", 1-7\/8\", and 2\" truck longtube headers and Y-pipe. Also connects directly to factory exhaust connections.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eKit Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e3\" Mandrel Bent 304 Stainless Steel Tubing\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFull Size Insulated Blow-Through Muffler\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAxle Exit Tip\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eOver-Axle Rear Exit Tip\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e3\" Stainless Band Clamps\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eConnects to Factory Hanger Locations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull Size Insulated Blow-Through Muffler\u003c\/strong\u003e — Deep tone without drone\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eBoth Exit Tips Included\u003c\/strong\u003e — Axle exit and over-axle rear exit tip included in every kit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eConnects to Factory Hanger Locations\u003c\/strong\u003e — No custom fabrication required for standard applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4.8L and 5.3L Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDesigned to Work with Speed Engineering 1-3\/4\", 1-7\/8\", and 2\" Longtube Headers and Y-Pipe\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eAlso Compatible with Factory Exhaust Connections\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eImportant Fitment Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eShort bed only\u003c\/strong\u003e for standard installation\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLonger bed configurations\u003c\/strong\u003e can be accommodated by extending the connection pipe\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSUV and non-standard wheelbase applications\u003c\/strong\u003e will require lengthening, shortening, and hanger relocation modifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWheelbase Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSingle Cab Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCrew Cab 5'8\" Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eExtra Cab 6' Short Bed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD) — Short Bed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD) — Short Bed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Does this exhaust system work with Speed Engineering longtube headers?\u003c\/strong\u003e Yes. This system is designed to work with Speed Engineering's 1-3\/4\", 1-7\/8\", and 2\" truck longtube headers and Y-pipe. It also connects directly to factory exhaust connections.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Which cab and bed configurations does this fit?\u003c\/strong\u003e This system fits Single Cab Short Bed, Crew Cab 5'8\" Short Bed, and Extra Cab 6' Short Bed configurations. Long bed trucks can be accommodated by extending the connection pipe.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What exit tip options are included?\u003c\/strong\u003e Both an axle exit tip and an over-axle rear exit tip are included in every kit, giving you the choice of exit style at installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this fit my SUV or long bed truck?\u003c\/strong\u003e SUV and non-standard wheelbase applications are possible but will require lengthening, shortening, and hanger relocation modifications. Long bed configurations can be accommodated by extending the connection pipe.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines is this compatible with?\u003c\/strong\u003e This system is compatible with 4.8L and 5.3L engines found in 1999–2006 Chevrolet Silverado and GMC Sierra 1500 models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material is this exhaust system made from?\u003c\/strong\u003e 304 natural stainless steel with mandrel-bent tubing and full TIG-welded construction.\u003c\/p\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228285247536,"sku":"25-1071","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1999_2006_Silverado_Sierra_3_Single_Exhaust_System_25-1071.png?v=1762214226"},{"product_id":"speed-engineering-1999-2006-silverado-sierra-true-dual-exhaust-system-crew-extra-cab-rear-exit","title":"Speed Engineering True Dual Exhaust System — 1999–2006 Chevrolet Silverado \u0026 GMC Sierra | Crew Cab \u0026 Extra Cab Rear Exit | 25-1006","description":"\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"0\"\u003eLooking to \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"11\"\u003ecomplete your true dual exhaust build \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"49\"\u003eon your GMT800 Silverado or Sierra \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"84\"\u003eCrew Cab or Extra Cab with a system \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"120\"\u003ethat connects to factory hanger \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"152\"\u003elocations? Speed Engineering's true \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"188\"\u003edual exhaust system is built from 3\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"225\"\u003emandrel bent 304 natural stainless \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"260\"\u003esteel with full size insulated \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"291\"\u003eblow-through mufflers, a true dual \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"326\"\u003eX-pipe crossover, and 3\" stainless band \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"366\"\u003eclamps included. Designed for 1999–2006 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"406\"\u003eCrew Cab 5'8\" Short Bed and Extra Cab \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"444\"\u003e6' Short Bed trucks (143.5\" wheelbase) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"483\"\u003eand connects directly to factory hanger \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"523\"\u003elocations, exiting at the rear of the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"561\"\u003evehicle for an aggressive look and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"596\"\u003etone. An optional wideband O₂ bung is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"634\"\u003eavailable for tuning applications. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"669\"\u003eCompatible with 4, 6, and 8 speed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"703\"\u003eautomatic transmissions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e⚠️ \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"7\"\u003eImportant:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"7\"\u003e This system is designed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"44\"\u003eto work with Speed Engineering \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"75\"\u003e1999–2006 truck and SUV longtube \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"108\"\u003eheaders only. It is NOT designed to \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"144\"\u003ework with any factory exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"174\"\u003eequipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eFeatures:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"18\"\u003eMandrel Bent 3\" Tubing\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"18\"\u003e — Consistent \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"56\"\u003ediameter throughout for maximum exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"96\"\u003eflow\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"96\"\u003eTrue Dual X-Pipe System\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"96\"\u003e — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"133\"\u003eBalances exhaust pulses between banks \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"171\"\u003efor improved tone and mid-range power\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"213\"\u003eFull Size Insulated Blow-Through Mufflers\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"213\"\u003e — Deep, aggressive exhaust tone \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"289\"\u003ewith straight-through flow\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"320\"\u003eRear Exit Design\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"320\"\u003e — Exits at the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"354\"\u003erear of the vehicle for an aggressive \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"392\"\u003eappearance and tone\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"416\"\u003eConnects to Factory Hanger Locations\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"452\"\u003e — No custom hanger fabrication \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"486\"\u003erequired on Crew Cab\/Extra Cab Short \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"523\"\u003eBed trucks\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"538\"\u003eOptional Wideband O₂ Bung\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"538\"\u003e — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"568\"\u003eAvailable for wideband sensor placement \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"608\"\u003efor tuning applications\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"636\"\u003e3\" Stainless Band Clamps Included\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"676\"\u003e304 Natural Stainless Steel Construction\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"676\"\u003e — Corrosion resistant, heat \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"747\"\u003etolerant, and built to last\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"779\"\u003eCompatible with 4, 6, and 8 Speed Automatic Transmissions\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"843\"\u003eCompatible with 4.8L, 5.3L, 6.0L, and 6.2L V8 Engines\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"843\"\u003eV8 Engines Only\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"925\"\u003eDyno Proven\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eVehicle Applications:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003ePrimary fit: Crew Cab 5'8\" Short Bed \u0026amp; Extra Cab 6' Short Bed (143.5\" wheelbase) — 1999–2006.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003e Will fit longer bed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"120\"\u003eoptions by extending connection pipes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eChevrolet Silverado 1500 (2WD\/4WD) — Crew Cab Short Bed \/ Extra Cab Short Bed\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e1999 Chevrolet \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"99\"\u003eSilverado 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"126\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"162\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"199\"\u003e2000 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"239\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"277\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"314\"\u003e2001 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"354\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"392\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"429\"\u003e2002 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"469\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"507\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"544\"\u003e2003 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"584\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"622\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"659\"\u003e2004 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"699\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"737\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"774\"\u003e2005 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"814\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"852\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"889\"\u003e2006 Chevrolet Silverado 1500 (2WD\/4WD) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"929\"\u003e— 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"967\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eGMC Sierra 1500 (2WD\/4WD) — Crew Cab Short Bed \/ Extra Cab Short Bed\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e1999 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003eGMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"108\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"144\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"181\"\u003e2000 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"214\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"250\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"287\"\u003e2001 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"320\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"356\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"393\"\u003e2002 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"426\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"462\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"499\"\u003e2003 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"532\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"568\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"605\"\u003e2004 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"638\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"674\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"711\"\u003e2005 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"744\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"780\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"817\"\u003e2006 GMC Sierra 1500 (2WD\/4WD) — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"850\"\u003e4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"886\"\u003eShort Bed \/ Extra Cab 6' Short Bed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eWheelbase Compatibility:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003eNote:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"4\"\u003e This system has also been \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"38\"\u003eused on SUV and other GM truck \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"69\"\u003ewheelbase applications. These require \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"107\"\u003elengthening, shortening, and hanger \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"143\"\u003erelocation modifications by the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"175\"\u003einstaller.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eGM Truck (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e119\" — Reg Cab, Short Bed (order \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003eand modify Reg Cab kit)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003e133\" — Reg \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"117\"\u003eCab, Long Bed (order Ext\/Crew Cab kit \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"155\"\u003eand modify)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"155\"\u003e143.5\" — Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"192\"\u003eShort Bed \u0026amp; Extra Cab 6' Short Bed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"227\"\u003e(primary fit, no modification)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"227\"\u003e153\" — \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"267\"\u003eCrew Cab, Reg Bed (order and modify \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"303\"\u003epart 25-1003)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"303\"\u003e157.5\" — Ext Cab, Long \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"342\"\u003eBed (order and modify part 25-1003)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"380\"\u003e167\" — Crew Cab, Long Bed (order and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"417\"\u003emodify part 25-1005)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eGM SUV (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e116\" — Order and modify Reg Cab \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"77\"\u003ekit\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"77\"\u003e130\" (XL) — Order and modify \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"112\"\u003ethis kit\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e2002–2013 Chevrolet Avalanche (EXT)\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"42\"\u003e130\" — Order and modify this kit\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eFrequently Asked Questions:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Will this system work with my factory exhaust manifolds?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eNo. This system \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003eis designed to work with Speed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"111\"\u003eEngineering 1999–2006 truck and SUV \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"147\"\u003elongtube headers only. It is not \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"180\"\u003edesigned to work with any factory \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"214\"\u003eexhaust equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What is the difference between this system and the axle-exit version (25-1006)?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eBoth are designed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"105\"\u003efor the same 1999–2006 Crew Cab 5'8\" \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"142\"\u003eShort Bed and Extra Cab 6' Short Bed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"179\"\u003etrucks (143.5\" wheelbase). This system \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"218\"\u003eexits at the rear of the vehicle and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"255\"\u003euses full size insulated blow-through \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"293\"\u003emufflers. The axle-exit version exits \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"331\"\u003eat the rear axle and uses insulated \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"367\"\u003ebullet style mufflers. Choose based on \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"406\"\u003eyour preferred exit location and \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"439\"\u003emuffler style.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What wheelbase does this system fit without modification?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eThis system is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003edesigned for Crew Cab 5'8\" Short Bed \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"117\"\u003eand Extra Cab 6' Short Bed trucks with \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"156\"\u003ea 143.5\" wheelbase and connects \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"188\"\u003edirectly to factory hanger locations.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Will this fit my Reg Cab Short Bed truck?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eNot without modification. Reg \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"79\"\u003eCab Short Bed (119\" wheelbase) \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"110\"\u003etrucks require ordering and modifying \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"148\"\u003ethe Reg Cab kit. For a direct fit on \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"185\"\u003esingle cab short bed trucks, see the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"222\"\u003esingle cab rear-exit system.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Will this fit my Tahoe, Yukon, or Suburban?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eThis system has been used on \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003eSUV applications but requires \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"110\"\u003elengthening, shortening, and hanger \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"146\"\u003erelocation modifications by the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"178\"\u003einstaller. It is not a direct, \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"209\"\u003eunmodified fit for SUVs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What transmissions does this system work with?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eThis system is compatible \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003ewith 4, 6, and 8 speed automatic \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"113\"\u003etransmissions.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Is a wideband O₂ bung included?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eA\u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"40\"\u003en optional wideband O₂ bung is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"71\"\u003eavailable for wideband sensor placement \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"111\"\u003efor tuning applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What mufflers does this system use?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eFull size insulated blow-through \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"76\"\u003emufflers for a deep, aggressive exhaust \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"116\"\u003etone with straight-through flow design.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: What material is this system made from?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e304 natural stainless steel with \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"80\"\u003emandrel-bent tubing and TIG-welded \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"115\"\u003econstruction. 3\" stainless band clamps \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"154\"\u003eare included.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eQ: Is this system street legal?\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003eNo. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"40\"\u003eThis is a race-only product intended \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"77\"\u003efor closed-course competition use only. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"117\"\u003eInstallation on a street-driven vehicle \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"157\"\u003emay violate the Clean Air Act (42 \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"191\"\u003eU.S.C. 7522(a)(3)).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"_chunkWrapper_6ta1u_30\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"2\"\u003e⚠️ \u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"7\"\u003eRace Use Only:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"7\"\u003e This product is \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"40\"\u003emanufactured and sold for installation \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"79\"\u003eon vehicles used solely for \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"107\"\u003ecompetition. Once installed, the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"140\"\u003evehicle may not be used, registered, or \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"180\"\u003elicensed for use on a public road or \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"217\"\u003ehighway. Installation on a \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"244\"\u003estreet-driven vehicle may violate the \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"282\"\u003eClean Air Act 203(a)(3), 42 U.S.C. \u003c\/span\u003e\u003cspan class=\"_animating_6ta1u_10\" data-newtext-seq=\"317\"\u003e7522(a)(3).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228285771824,"sku":"25-1006","price":699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1999_2006_Silverado_Sierra_True_Dual_Exhaust_System_Crew_Extra_Cab_Rear_Exit_25-1006.png?v=1762214341"},{"product_id":"speed-engineering-1999-2006-silverado-sierra-true-dual-exhaust-system-crew-extra-cab-axle-exit","title":"Speed Engineering True Dual Exhaust System — 1999–2006 Chevrolet Silverado \u0026 GMC Sierra | Crew Cab \u0026 Extra Cab Axle Exit | 25-1006","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eLooking to complete your true dual exhaust build on your GMT800 Silverado or Sierra Crew Cab or Extra Cab with a system that connects to factory hanger locations? Speed Engineering's true dual exhaust system is built from 3\" mandrel bent 304 natural stainless steel with insulated bullet style blow-through mufflers, a true dual X-pipe crossover, and 3\" stainless band clamps included. Designed for 1999–2006 Crew Cab 5'8\" Short Bed and Extra Cab 6' Short Bed trucks (143.5\" wheelbase) and connects directly to factory hanger locations. An optional wideband O₂ bung is available for tuning applications. Compatible with 4, 6, and 8 speed automatic transmissions.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e This system is designed to work with Speed Engineering 1999–2006 truck and SUV longtube headers only. It is NOT designed to work with any factory exhaust equipment.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent 3\" Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrue Dual X-Pipe System\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eInsulated Bullet Style Blow-Through Mufflers\u003c\/strong\u003e — Deep, aggressive exhaust tone with straight-through flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eConnects to Factory Hanger Locations\u003c\/strong\u003e — No custom hanger fabrication required on Crew Cab\/Extra Cab Short Bed trucks\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eOptional Wideband O₂ Bung\u003c\/strong\u003e — Available for wideband sensor placement for tuning applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Stainless Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4, 6, and 8 Speed Automatic Transmissions\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 4.8L, 5.3L, 6.0L, and 6.2L V8 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003ePrimary fit: Crew Cab 5'8\" Short Bed \u0026amp; Extra Cab 6' Short Bed (143.5\" wheelbase) — 1999–2006.\u003c\/strong\u003e Will fit longer bed options by extending connection pipes.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Silverado 1500 (2WD\/4WD) — Crew Cab Short Bed \/ Extra Cab Short Bed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Silverado 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGMC Sierra 1500 (2WD\/4WD) — Crew Cab Short Bed \/ Extra Cab Short Bed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 GMC Sierra 1500 (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L — Crew Cab 5'8\" Short Bed \/ Extra Cab 6' Short Bed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eWheelbase Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This system has also been used on SUV and other GM truck wheelbase applications. These require lengthening, shortening, and hanger relocation modifications by the installer.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGM Truck (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e119\" — Reg Cab, Short Bed (order and modify Reg Cab kit)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e133\" — Reg Cab, Long Bed (order Ext\/Crew Cab kit and modify)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e143.5\" — Crew Cab 5'8\" Short Bed \u0026amp; Extra Cab 6' Short Bed (primary fit, no modification)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e153\" — Crew Cab, Reg Bed (order and modify part 25-1003)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e157.5\" — Ext Cab, Long Bed (order and modify part 25-1003)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e167\" — Crew Cab, Long Bed (order and modify part 25-1005)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGM SUV (2WD\/4WD) — 4.8L\/5.3L\/6.0L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e116\" — Order and modify Reg Cab kit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e130\" (XL) — Order and modify this kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003e2002–2013 Chevrolet Avalanche (EXT)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e130\" — Order and modify this kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this system work with my factory exhaust manifolds?\u003c\/strong\u003e\u003cbr\u003eNo. This system is designed to work with Speed Engineering 1999–2006 truck and SUV longtube headers only. It is not designed to work with any factory exhaust equipment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What wheelbase does this system fit without modification?\u003c\/strong\u003e\u003cbr\u003eThis system is designed for Crew Cab 5'8\" Short Bed and Extra Cab 6' Short Bed trucks with a 143.5\" wheelbase and connects directly to factory hanger locations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between this system and the single cab rear-exit system (25-1006)?\u003c\/strong\u003e\u003cbr\u003eThis system is an axle-exit design for Crew Cab and Extra Cab Short Bed trucks (143.5\" wheelbase, 1999–2006) and uses insulated bullet style mufflers. The single cab rear-exit system is designed for single cab, short bed trucks (119\" wheelbase, 1999–2018) and uses full size insulated blow-through mufflers. Choose based on your cab configuration and exit style preference.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this fit my Reg Cab Short Bed truck?\u003c\/strong\u003e\u003cbr\u003eNot without modification. Reg Cab Short Bed (119\" wheelbase) trucks require ordering and modifying the Reg Cab kit.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this fit my Tahoe, Yukon, or Suburban?\u003c\/strong\u003e\u003cbr\u003eThis system has been used on SUV applications but requires lengthening, shortening, and hanger relocation modifications by the installer. It is not a direct, unmodified fit for SUVs.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What transmissions does this system work with?\u003c\/strong\u003e\u003cbr\u003eThis system is compatible with 4, 6, and 8 speed automatic transmissions.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is a wideband O₂ bung included?\u003c\/strong\u003e\u003cbr\u003eAn optional wideband O₂ bung is available for wideband sensor placement for tuning applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What mufflers does this system use?\u003c\/strong\u003e\u003cbr\u003eInsulated bullet style blow-through mufflers for a deep, aggressive exhaust tone with straight-through flow design.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material is this system made from?\u003c\/strong\u003e\u003cbr\u003e304 natural stainless steel with mandrel-bent tubing and TIG-welded construction. 3\" stainless band clamps are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is this system street legal?\u003c\/strong\u003e\u003cbr\u003eNo. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228287639600,"sku":"25-1006","price":629.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1999_2006_Silverado_Sierra_True_Dual_Exhaust_System_Crew_Extra_Cab_Axle_Exit_25-1006.png?v=1762214510"},{"product_id":"speed-engineering-2006-2009-trailblazer-ss-1-7-8in-longtube-headers-6-0-ls2","title":"Speed Engineering 1-7\/8\" Longtube Headers — 2006–2009 Chevrolet Trailblazer SS | 6.0L LS2 | 25-1041 ETA 6\/30\/26","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe factory exhaust manifolds on your Trailblazer SS are one of the first restrictions holding back your LS2. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel with a merge spike for maximum exhaust flow and over 25 rear-wheel horsepower over stock. Fits both AWD and RWD Trailblazer SS configurations.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Primary Tubes\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LS2 performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMerge Spike\u003c\/strong\u003e — Improved exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the cylinder head for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on LS2 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.0L LS2 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eFits Both AWD and RWD Configurations\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Trailblazer SS — LS2 6.0L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Trailblazer SS (AWD\/RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Trailblazer SS (AWD\/RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Trailblazer SS (AWD\/RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Trailblazer SS (AWD\/RWD) — 6.0L LS2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Do these headers fit both AWD and RWD Trailblazer SS models?\u003c\/strong\u003e\u003cbr\u003eYes. These headers fit both AWD and RWD Trailblazer SS configurations.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e\u003cbr\u003eSpeed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on Trailblazer SS LS2 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e\u003cbr\u003e304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and a merge spike.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e\u003cbr\u003eYes. Standard graphite manifold gaskets are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e\u003cbr\u003eNo. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41231171289136,"sku":"25-1041","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2006_2009_Trailblazer_SS_1-7_8_Longtube_Headers_LS2_25-1041.jpg?v=1762214962"},{"product_id":"speed-engineering-2006-2009-trailblazer-ss-cat-back-exhaust-system","title":"Speed Engineering Cat-Back Exhaust System — 2006–2009 Chevrolet Trailblazer SS \/ TBSS 6.0L LS | 25-1069","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eUpgrade the exhaust on your Trailblazer SS or TBSS with Speed Engineering's 3\" cat-back system. Built from 304 natural stainless steel with mandrel-bent tubing and TIG-welded construction, this system works with both the factory manifolds and cats or Speed Engineering longtube headers and Y-pipe — making it a versatile upgrade whether you're building the exhaust system in stages or doing it all at once. Includes a single 4\" exhaust tip and 3\" stainless band clamps. Dyno proven.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWorks with Stock Manifolds and Catalytic Converters\u003c\/strong\u003e — Direct bolt-on to factory exhaust system\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWorks with Speed Engineering Longtube Headers and Y-Pipe\u003c\/strong\u003e — Compatible whether building in stages or all at once\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eSingle 4\" Exhaust Tip Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Stainless Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.0L LS V8 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 Engines Only\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Trailblazer SS \/ TBSS — 6.0L LS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Trailblazer SS (TBSS) — 6.0L LS\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Trailblazer SS (TBSS) — 6.0L LS\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Trailblazer SS (TBSS) — 6.0L LS\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Trailblazer SS (TBSS) — 6.0L LS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this exhaust system work with my factory manifolds?\u003c\/strong\u003e Yes. This cat-back system is designed to work with the factory exhaust manifolds and catalytic converters as a direct bolt-on upgrade on the Trailblazer SS and TBSS.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this also work with Speed Engineering longtube headers and Y-pipe?\u003c\/strong\u003e Yes. This system is compatible with Speed Engineering longtube headers and Y-pipe as well, making it a great choice whether you are building your exhaust system in stages or completing it all at once.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What size tubing does this system use?\u003c\/strong\u003e All tubing is 3\" diameter, mandrel bent for consistent flow throughout. A single 4\" exhaust tip and 3\" stainless band clamps are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material is this exhaust system made from?\u003c\/strong\u003e 304 natural stainless steel with mandrel-bent tubing and TIG-welded construction.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is this exhaust system street legal?\u003c\/strong\u003e No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41231224078384,"sku":"25-1069","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2006_2009_Trailblazer_SS_Cat-Back_Exhaust_System_25-1069.png?v=1762215142"},{"product_id":"speed-engineering-1-7-8-longtube-headers-for-pontiac-g8-chevrolet-ss-sedan-caprice-ppv-6-0l-6-2l-ls-engines-25-1073","title":"Speed Engineering 1-7\/8\" Longtube Headers for Pontiac G8, Chevrolet SS Sedan \u0026 Caprice PPV — 6.0L \/ 6.2L LS Engines | 25-1073","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e \u003c\/p\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003eProduct Description\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your LS-powered Pontiac G8, Chevrolet SS Sedan, or Caprice PPV are a known restriction. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven replacement that unlocks real exhaust flow, improves throttle response, and puts measurable power back in your hands — over 25 rear-wheel horsepower gained over stock.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eEvery set is mandrel bent, TIG-welded, and built from 304 natural stainless steel with CNC-machined flanges. The fit is precise, the quality is there, and the price leaves room for your next build.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e1-7\/8\" Port-Matched Primary Tubes\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector with Collector Spikes\u003c\/strong\u003e — Optimized merge geometry for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no flow restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency compared to shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eClears Oil Cooler\u003c\/strong\u003e — No oil cooler relocation required on any listed application\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain documented on 6.0L and 6.2L LS applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePontiac G8\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Pontiac G8 GT (RWD) — 6.0L L76\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Pontiac G8 GT (RWD) — 6.0L L76\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Pontiac G8 GXP (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet SS Sedan\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet SS Sedan (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet SS Sedan (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet SS Sedan (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet SS Sedan (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Caprice PPV\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCaprice Note:\u003c\/strong\u003e X-pipe and true dual exhaust setups may require modifications for proper fitment on Caprice applications.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these longtube headers add?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 6.0L and 6.2L LS-equipped vehicles compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these fit my Chevrolet Caprice PPV?\u003c\/strong\u003e Yes. These are a direct-fit application for 2011–2017 Chevrolet Caprice PPV models with the 6.0L L77 engine. X-pipe and true dual exhaust configurations may require minor modifications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do I need to relocate the oil cooler for installation?\u003c\/strong\u003e No. These headers are specifically engineered to clear the oil cooler on all listed applications with no relocation required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 stainless steel with full TIG-welded construction and CNC-machined flanges for a precise, durable, leak-free fit.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines does part number 25-1073 fit?\u003c\/strong\u003e Part #25-1073 fits GM 6.0L LS2, L76, and L77 engines and the 6.2L LS3, covering the Pontiac G8 GT\/GXP, Chevrolet SS Sedan, and Chevrolet Caprice PPV.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41231307374640,"sku":"25-1073","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_Pontiac_G8_Chevrolet_SS_Caprice_1-7_8_Longtube_Headers_6.0_6.2_Engines_25-1073.png?v=1762215451"},{"product_id":"speed-engineering-pontiac-g8-chevrolet-ss-caprice-x-pipe-6-0l-6-2l","title":"Speed Engineering X-Pipe — 2008–2009 Pontiac G8 \/ 2014–2017 Chevrolet SS Sedan \/ 2011–2017 Chevrolet Caprice PPV | 6.0L\/6.2L | 25-1074 ETA 6\/30\/26","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eConnecting your Speed Engineering longtube headers to the existing axle-back on your G8, SS Sedan, or Caprice PPV? This is the X-pipe that completes the system. Built from 3\" mandrel bent 304 natural stainless steel with TIG-welded construction and band clamps included — designed specifically for Speed Engineering longtube headers.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eThis X-pipe is designed for Speed Engineering longtube headers only\u003c\/strong\u003e — it will NOT work as a factory exhaust manifold replacement\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCaprice PPV applications require modifications at the axle-back connection\u003c\/strong\u003e for proper installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrue X-Pipe Design\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eBand Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.0L and 6.2L Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003ePontiac G8 — 6.0L\/6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Pontiac G8 GT (RWD) — 6.0L L76\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Pontiac G8 GT (RWD) — 6.0L L76\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Pontiac G8 GXP (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet SS Sedan — 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet SS Sedan (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet SS Sedan (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet SS Sedan (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet SS Sedan (RWD) — 6.2L LS3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Caprice PPV — 6.0L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2015 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Chevrolet Caprice PPV (RWD) — 6.0L L77\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will this X-pipe work with factory exhaust manifolds?\u003c\/strong\u003e\u003cbr\u003eNo. This X-pipe is designed for use with Speed Engineering longtube headers only and will not work as a factory exhaust manifold replacement.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Do Caprice PPV applications require any special modifications?\u003c\/strong\u003e\u003cbr\u003eYes. Caprice PPV applications require modifications at the axle-back connection for proper installation of this X-pipe.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Does this X-pipe pair with the Speed Engineering longtube headers for these platforms?\u003c\/strong\u003e\u003cbr\u003eYes. This X-pipe is designed to pair with the Speed Engineering 2\" longtube headers (25-1136) for the G8, SS Sedan, and Caprice PPV.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What size tubing does this X-pipe use?\u003c\/strong\u003e\u003cbr\u003e3\" diameter, mandrel bent for consistent flow throughout. Band clamps are included for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material is this X-pipe made from?\u003c\/strong\u003e\u003cbr\u003e304 natural stainless steel with mandrel-bent tubing and TIG-welded construction.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is this X-pipe street legal?\u003c\/strong\u003e\u003cbr\u003eNo. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41231354069040,"sku":"25-1074","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_Pontiac_G8_Chevrolet_SS_Caprice_X-Pipe_6.0L_6.2L_Engines_25-1074.png?v=1762215612"},{"product_id":"speed_engineering_2004-2006_pontiac_gto_1-7-8in_longtube_headers_ls1_ls2-jpg","title":"Speed Engineering 1-7\/8\" Longtube Headers — 2004–2006 Pontiac GTO LS1\/LS2 5.7L\/6.0L | 25-1050","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your GTO are one of the first restrictions holding back your LS1 or LS2. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 25 rear-wheel horsepower over stock.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined port-matched flanges, and full TIG-welded construction.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e Speed Engineering's GTO X-pipe kit is required for proper installation of these headers. The X-pipe is sold separately.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Port-Matched Primary Tubes\u003c\/strong\u003e — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on LS1 and LS2 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 5.7L LS1 and 6.0L LS2 Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePontiac GTO — LS1\/LS2\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Pontiac GTO (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Pontiac GTO (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Pontiac GTO (RWD) — 6.0L LS2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add to a Pontiac GTO?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on LS1 and LS2 equipped 2004–2006 Pontiac GTO applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do I need any additional parts to install these headers?\u003c\/strong\u003e Yes. Speed Engineering's GTO X-pipe kit is required for proper installation of these headers and is sold separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the 5.7L LS1 found in the 2004 GTO and the 6.0L LS2 found in 2005–2006 GTO models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What size are the primary tubes?\u003c\/strong\u003e These headers feature full 1-7\/8\" port-matched primary tubes with a 3\" collector.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined port-matched flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41231696363568,"sku":"25-1050","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2004_2006_Pontiac_GTO_1-7_8_Longtube_Headers_LS1_LS2_Engines_25-1050.jpg?v=1762267982"},{"product_id":"speed-engineering-2004-2006-pontiac-gto-x-pipe-kit-ls1-ls2","title":"Speed Engineering X-Pipe Kit — 2004–2006 Pontiac GTO LS1\/LS2 5.7L\/6.0L | 25-1051","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eFree up exhaust flow on your GTO with Speed Engineering's 3\" X-pipe kit. Built from 304 natural stainless steel with mandrel-bent tubing, TIG-welded construction, and 3\" band clamps included. Dyno proven and designed to work with Speed Engineering longtube headers on LS1 and LS2 equipped GTO applications.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Installation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThis X-pipe requires cutting the factory cat-back exhaust for installation\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eThis X-pipe is designed to work with Speed Engineering longtube headers only — it is NOT compatible with factory exhaust manifolds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eX-Style Crossover Design\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with LS1, LS2, 5.7L, and 6.0L Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePontiac GTO — LS1\/LS2\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Pontiac GTO — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Pontiac GTO — 6.0L LS2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Pontiac GTO — 6.0L LS2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this X-pipe work with my factory exhaust manifolds?\u003c\/strong\u003e No. This X-pipe is designed to work with Speed Engineering longtube headers only. It is not compatible with factory exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Does installation require cutting the factory cat-back?\u003c\/strong\u003e Yes. The factory cat-back exhaust will need to be cut for proper installation of this X-pipe.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What size tubing does this X-pipe use?\u003c\/strong\u003e This X-pipe uses 3\" mandrel bent tubing throughout with 3\" band clamps included for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines is this X-pipe compatible with?\u003c\/strong\u003e This X-pipe is compatible with LS1 5.7L and LS2 6.0L engines found in 2004–2006 Pontiac GTO models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material is this X-pipe made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and mandrel-bent tubing.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is this X-pipe street legal?\u003c\/strong\u003e No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41231700754480,"sku":"25-1051","price":219.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2004_2006_Pontiac_GTO_X-Pipe_Kit_LS1_LS2_Engines_25-1051.png?v=1762268124"},{"product_id":"speed-engineering-2022-2023-cadillac-ct5-v-blackwing-2in-longtube-headers-lt4","title":"Speed Engineering 2\" Longtube Headers — 2022–2023 Cadillac CT5-V Blackwing | LT4 6.2L | 25-1061","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eLooking to free up exhaust flow on your CT5-V Blackwing? Speed Engineering's 2\" longtube headers are mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel for maximum exhaust flow and over 25 rear-wheel horsepower over stock. These are headers only — this is not a direct bolt-on installation. Fabrication of connection pipes is required for proper fitment on the CT5-V Blackwing chassis, and O₂ sensor extensions are needed to complete installation.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant Installation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFabrication of connection pipes is required\u003c\/strong\u003e — these headers are NOT a direct bolt-on on the CT5-V Blackwing. Custom connection pipes must be fabricated for proper fitment\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eO₂ sensor extensions are required\u003c\/strong\u003e — sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 2\" Port-Matched Primary Tubes\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LT4 performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the cylinder head for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on LT4 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.2L LT4 Supercharged Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac CT5-V Blackwing — LT4 6.2L Supercharged\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 Cadillac CT5-V Blackwing — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 Cadillac CT5-V Blackwing — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers a direct bolt-on?\u003c\/strong\u003e No. These headers are NOT a direct bolt-on for the CT5-V Blackwing. Fabrication of custom connection pipes is required for proper installation on this chassis.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do I need O₂ sensor extensions?\u003c\/strong\u003e Yes. O₂ sensor extensions are required to complete installation and are sold separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How does this CT5-V Blackwing listing differ from the CTS-V listing (25-1061)?\u003c\/strong\u003e Both are 2\" longtube headers for LT4-powered Cadillac sedans — the CTS-V version is designed for the 2016–2019 Gen 3 CTS-V and may have a more direct fitment path. The CT5-V Blackwing application specifically requires fabrication of connection pipes due to the different chassis layout of the 2022–2023 CT5 platform.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 2\" longtube headers are dyno proven to add over 25 rear-wheel horsepower compared to stock exhaust manifolds on LT4 applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41236531937328,"sku":"25-1061","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2022_2023_Cadillac_CT5-V_Blackwing_2_Longtube_Headers_LT4_Engine_25-1061.png?v=1762268234"},{"product_id":"speed-engineering-2022-2023-cadillac-ct5-v-blackwing-1-7-8in-longtube-headers-lt4","title":"Speed Engineering 1-7\/8\" Longtube Headers — 2022–2023 Cadillac CT5-V Blackwing | LT4 6.2L | 25-1046","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eLooking to free up exhaust flow on your CT5-V Blackwing with a 1-7\/8\" tube option? Speed Engineering's 1-7\/8\" longtube headers are mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel for maximum exhaust flow and over 25 rear-wheel horsepower over stock. These are headers only — this is not a direct bolt-on installation. Fabrication of connection pipes is required for proper fitment on the CT5-V Blackwing chassis, and O₂ sensor extensions are needed to complete installation.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eImportant Installation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFabrication of connection pipes is required\u003c\/strong\u003e — these headers are NOT a direct bolt-on on the CT5-V Blackwing. Custom connection pipes must be fabricated for proper fitment\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eO₂ sensor extensions are required\u003c\/strong\u003e — sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Port-Matched Primary Tubes\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LT4 performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the cylinder head for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on LT4 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.2L LT4 Supercharged Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCadillac CT5-V Blackwing — LT4 6.2L Supercharged\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 Cadillac CT5-V Blackwing — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 Cadillac CT5-V Blackwing — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are these headers a direct bolt-on?\u003c\/strong\u003e No. These headers are NOT a direct bolt-on for the CT5-V Blackwing. Fabrication of custom connection pipes is required for proper installation on this chassis.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Do I need O₂ sensor extensions?\u003c\/strong\u003e Yes. O₂ sensor extensions are required to complete installation and are sold separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between these 1-7\/8\" headers and the 2\" headers (25-1061) for the CT5-V Blackwing?\u003c\/strong\u003e The primary tube diameter is the key difference. The 1-7\/8\" headers are a strong choice for most performance builds across a broad RPM range. The 2\" headers deliver maximum exhaust flow for more aggressive builds with supporting modifications. Both require fabrication of connection pipes and O₂ extensions for the CT5-V Blackwing chassis.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower compared to stock exhaust manifolds on LT4 applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41240418254896,"sku":"25-1046","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2022_2023_Cadillac_CT5-V_Blackwing_1-7_8_Longtube_Headers_LT4_Engine_25-1046.png?v=1762268454"},{"product_id":"speed-engineering-2016-2019-cadillac-cts-v-2in-longtube-headers-lt4","title":"Speed Engineering 2\" Longtube Headers — 2016–2019 Cadillac CTS-V | LT4 6.2L Supercharged | 25-1061","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your Gen 3 CTS-V are one of the first restrictions holding back your LT4. Speed Engineering's 2\" longtube headers are a direct-fit, dyno-proven upgrade — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel for maximum exhaust flow and over 25 rear-wheel horsepower over stock. Speed Engineering X-pipe kit is required for installation and sold separately.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 2\" Port-Matched Primary Tubes\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LT4 performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on CTS-V LT4 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.2L LT4 Supercharged Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac CTS-V — LT4 6.2L Supercharged\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Cadillac CTS-V (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Cadillac CTS-V (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Cadillac CTS-V (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Cadillac CTS-V (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is an X-pipe included with these headers?\u003c\/strong\u003e No. These are headers only. The Speed Engineering X-pipe kit is required for proper installation and is sold separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What is the difference between this listing and the Gen 2 CTS-V X-pipe kit (25-1049)?\u003c\/strong\u003e Part 25-1061 is the 2\" longtube headers for the 2016–2019 Gen 3 CTS-V with the 6.2L LT4 supercharged engine. Part 25-1049 is the X-pipe kit for the 2009–2015 Gen 2 CTS-V with the 6.2L LSA supercharged engine. These are completely different engine generations requiring different components.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 2\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 2016–2019 CTS-V LT4 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines are these headers compatible with?\u003c\/strong\u003e These headers are compatible with the 6.2L LT4 supercharged engine found in the 2016–2019 Cadillac CTS-V.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41240464392240,"sku":"25-1061","price":499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2016_2019_Cadillac_CTS-V_2_Longtube_Headers_LT4_Engine_25-1061.png?v=1762268594"},{"product_id":"speed-engineering-2016-2019-cadillac-cts-v-1-7-8in-longtube-headers-lt4","title":"Speed Engineering 1-7\/8\" Longtube Headers — 2016–2019 Cadillac CTS-V | LT4 6.2L Supercharged | 25-1046","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe factory exhaust manifolds on your Gen 3 CTS-V are one of the first restrictions holding back your LT4. Speed Engineering's 1-7\/8\" longtube headers are a direct-fit, dyno-proven upgrade — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel for maximum exhaust flow and over 25 rear-wheel horsepower over stock. Speed Engineering X-pipe kit is required for installation and sold separately.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFull 1-7\/8\" Port-Matched Primary Tubes\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LT4 performance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Collector\u003c\/strong\u003e — Optimized for strong low-to-mid RPM torque\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMandrel Bent Tubing\u003c\/strong\u003e — Consistent tube diameter through every bend; no crimping, no restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Flanges\u003c\/strong\u003e — Precision fit at the head and collector for a leak-free seal\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLongtube Header Design\u003c\/strong\u003e — Maximum scavenging efficiency vs. shorty or mid-length headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eStandard Graphite Manifold Gaskets Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDyno Proven\u003c\/strong\u003e — 25+ RWHP gain on CTS-V LT4 applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with 6.2L LT4 Supercharged Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCadillac CTS-V — LT4 6.2L Supercharged\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Cadillac CTS-V (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Cadillac CTS-V (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Cadillac CTS-V (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Cadillac CTS-V (RWD) — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Is an X-pipe included with these headers?\u003c\/strong\u003e No. These are headers only. The Speed Engineering X-pipe kit is required for proper installation and is sold separately.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between these 1-7\/8\" headers and the 2\" headers (25-1061) for the CTS-V?\u003c\/strong\u003e The primary tube diameter is the key difference. The 1-7\/8\" headers are a strong choice for most street and performance builds. The 2\" headers deliver maximum exhaust flow for more aggressive builds with supporting modifications such as a larger supercharger, cam, or heads.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What is the difference between these headers and the Gen 2 CTS-V X-pipe kit (25-1049)?\u003c\/strong\u003e Part 25-1046 is the 1-7\/8\" longtube headers for the 2016–2019 Gen 3 CTS-V with the 6.2L LT4 supercharged engine. Part 25-1049 is the X-pipe kit only for the 2009–2015 Gen 2 CTS-V with the 6.2L LSA supercharged engine. These are completely different engine generations requiring different components.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: How much horsepower do these headers add?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 2016–2019 CTS-V LT4 applications compared to stock exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What material are these headers made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and CNC-machined flanges.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are gaskets included?\u003c\/strong\u003e Yes. Standard graphite manifold gaskets are included.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Are these headers street legal?\u003c\/strong\u003e No. These are race-only headers intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-[hsl(var(--border-300)\/0.1)] pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41240459903024,"sku":"25-1046","price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2016_2019_Cadillac_CTS-V_1-7_8_Longtube_Headers_LT4_Engine_25-1046.png?v=1762268760"},{"product_id":"speed-engineering-2016-2019-cadillac-cts-v-longtube-x-pipe-kit-6-2l","title":"Speed Engineering Longtube X-Pipe Kit — 2016–2019 Cadillac CTS-V LT4 6.2L | 25-1062","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eTake your CTS-V build further with Speed Engineering's 3\" longtube X-pipe kit. Built from polished 304 stainless steel with mandrel-bent tubing, TIG-welded construction, and 3\" band clamps included. Dyno proven and designed to work exclusively with Speed Engineering longtube headers on LT4 6.2L CTS-V applications.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e This X-pipe is designed to work with Speed Engineering longtube headers only. It is NOT compatible with factory exhaust manifolds or any factory exhaust manifold equipment.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum exhaust flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eX-Style Crossover Design\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant, heat tolerant, and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with LT4 6.2L Engine\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac CTS-V — LT4 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Cadillac CTS-V — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Cadillac CTS-V — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Cadillac CTS-V — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Cadillac CTS-V — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this X-pipe work with my factory exhaust manifolds?\u003c\/strong\u003e No. This X-pipe is designed to work with Speed Engineering longtube headers only. It is not compatible with factory exhaust manifolds or any factory exhaust manifold equipment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What size tubing does this X-pipe use?\u003c\/strong\u003e This X-pipe uses 3\" mandrel bent tubing throughout with 3\" band clamps included for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines is this X-pipe compatible with?\u003c\/strong\u003e This X-pipe is compatible with the LT4 6.2L engine found in 2016–2019 Cadillac CTS-V models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material is this X-pipe made from?\u003c\/strong\u003e 304 stainless steel with full TIG-welded construction and mandrel-bent tubing.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is this X-pipe street legal?\u003c\/strong\u003e No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41240473763888,"sku":"25-1062","price":259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2016_2019_Cadillac_CTS-V_Longtube_X-Pipe_Kit_6.2L_Engine_25-1062.png?v=1762268960"},{"product_id":"speed-engineering-2016-2019-cadillac-cts-v-manifold-x-pipe-kit-6-2l","title":"Speed Engineering Manifold X-Pipe Kit — 2016–2019 Cadillac CTS-V LT4 6.2L | 25-1064","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eLooking to improve exhaust tone and flow on your CTS-V without removing the factory manifolds or catalytic converters? Speed Engineering's 3\" manifold X-pipe bolts directly to the factory exhaust system, connects both sides through an X-style crossover, and keeps all O₂ sensors in place — no tuning required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with mandrel-bent tubing, TIG-welded construction, and 3\" band clamps included.\u003c\/p\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eImportant:\u003c\/strong\u003e This X-pipe is designed to work with factory exhaust manifolds and catalytic converters only. It is NOT compatible with Speed Engineering longtube headers or any aftermarket longtube header system.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e3\" Mandrel Bent Tubing\u003c\/strong\u003e — Consistent diameter throughout for maximum flow\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eX-Style Crossover Design\u003c\/strong\u003e — Balances exhaust pulses between banks for improved tone and mid-range power\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDirect Bolt-On to Factory Exhaust\u003c\/strong\u003e — No cutting, welding, or modifications required\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eRetains Both Front and Rear O₂ Sensors\u003c\/strong\u003e — No check engine light, no tuning required\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e3\" Band Clamps Included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e304 Natural Stainless Steel Construction\u003c\/strong\u003e — Corrosion resistant and built to last\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eCompatible with LT1, LT4, ZL1, and 6.2L Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDyno Proven\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCadillac CTS-V — LT4 6.2L\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Cadillac CTS-V — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Cadillac CTS-V — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Cadillac CTS-V — 6.2L LT4\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Cadillac CTS-V — 6.2L LT4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFrequently Asked Questions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will this X-pipe work with my longtube headers?\u003c\/strong\u003e No. This X-pipe is specifically designed to work with the factory exhaust manifolds and catalytic converters only. It is not compatible with Speed Engineering longtube headers or any aftermarket longtube header system.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will I get a check engine light after installing this X-pipe?\u003c\/strong\u003e No. This system retains both the front and rear O₂ sensors in their factory locations, so no check engine light will be triggered and no PCM tuning is required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Does this X-pipe require any cutting or welding?\u003c\/strong\u003e No. This is a direct bolt-on system designed to connect to the factory exhaust manifolds with no cutting, welding, or modifications required.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What size tubing does this X-pipe use?\u003c\/strong\u003e This X-pipe uses 3\" mandrel bent tubing throughout with 3\" band clamps included for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What engines is this X-pipe compatible with?\u003c\/strong\u003e This X-pipe is compatible with LT1, LT4, ZL1, and 6.2L engines found in 2016–2019 Cadillac CTS-V models.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material is this X-pipe made from?\u003c\/strong\u003e 304 natural stainless steel with full TIG-welded construction and mandrel-bent tubing.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Is this X-pipe street legal?\u003c\/strong\u003e No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003cblockquote class=\"ml-2 border-l-4 border-border-300\/10 pl-4 text-text-300\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eRace Use Only:\u003c\/strong\u003e This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41240482644016,"sku":"25-1064","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2016_2019_Cadillac_CTS-V_Manifold_X-Pipe_Kit_6.2L_Engine_25-1064.png?v=1762269092"}],"url":"https:\/\/berryperformancesales.com\/collections\/black-friday-speed-engineering.oembed?page=2","provider":"Berry Performance Sales","version":"1.0","type":"link"}