{"title":"Best Selling","description":"","products":[{"product_id":"3d-maxpider-16-22-chevrolet-camaro-kagu-cargo-liner-black","title":"3D MAXpider 16-22 Chevrolet Camaro Kagu Cargo Liner - Black","description":"\u003cp\u003eUnlike the traditional floor mats with heavy weights, commercial rubbery looking; 3D MAXpider custom-fit floor mats are the revolutionary interior protection for your vehicles with an innovative, unique three-layer structure. The digitized three dimensional design measured to exact cabin contours of your vehicle for trapping mess and spills yet, patented anti-skid backing keeps mats in place without harming the original carpet. Choices of stylish carbon fiber texture rubber surface or classic looped fabric surface.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMAXpider® Btm Layer Keeps Mat in Place w\/o Harming Orig. Carpet\u003c\/li\u003e\n\u003cli\u003e3D Digitized Design Matches Each Vehicle Application\u003c\/li\u003e\n\u003cli\u003eWaterproof - Effectively Protects Vehicles Interior\u003c\/li\u003e\n\u003cli\u003eShock and Sound Absorbent Inner Layer\u003c\/li\u003e\n\u003cli\u003eRaised Edges Give Maximum Coverage\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2023\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCamaro\u003c\/td\u003e\n\u003ctd\u003eLS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCamaro\u003c\/td\u003e\n\u003ctd\u003eLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCamaro\u003c\/td\u003e\n\u003ctd\u003eLT1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCamaro\u003c\/td\u003e\n\u003ctd\u003eSS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCamaro\u003c\/td\u003e\n\u003ctd\u003eZL1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"3D MAXpider","offers":[{"title":"Default Title","offer_id":41164690194480,"sku":"ACEM1CH0691309","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/products\/d89611caf09af001725bc92023e3582e.jpg?v=1708624510"},{"product_id":"speed-engineering-ls-exhaust-manifold-gaskets-gm-ls1-ls6","title":"Speed Engineering LS Exhaust Manifold Gaskets — GM LS1\/LS2\/LS3\/LS6\/LS7\/LS9\/LSX Engines | 25-1001","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eNeed a reliable seal between your cylinder heads and your headers or factory manifolds? Speed Engineering's MLS (multi-layer steel) exhaust manifold gaskets are engineered for extreme cylinder pressures, maintaining torque set and resisting corrosion without burning through or pushing out. No sealants required. These gaskets work across virtually any combination of cylinder head and exhaust manifold materials, making them compatible with Speed Engineering headers or factory exhaust manifolds. Sold in pairs — one for each bank.\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\u003eMulti-Layer Steel (MLS) Construction\u003c\/strong\u003e — Maintains torque set and resists corrosion under extreme cylinder pressures\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eNo Sealants Required\u003c\/strong\u003e — Direct installation without additional sealing compounds\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCompatible with Various Head and Manifold Material Combinations\u003c\/strong\u003e — Works with Speed Engineering headers or factory manifolds\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eResists Burn-Through and Push-Out\u003c\/strong\u003e — Engineered for long-term durability under heat and pressure\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e2 QTY per Package\u003c\/strong\u003e — One gasket per bank\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\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCompatible Engines:\u003c\/strong\u003e\u003cbr\u003eLS1, LS2, LS3, LS6, LS7, LS9, LSX\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCompatible Vehicles:\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\"\u003e1999–2002 Chevrolet Camaro \u0026amp; Pontiac Firebird\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010–2013 Chevrolet Camaro\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999–2013 Chevrolet Corvette\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004–2006 Pontiac GTO\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004–2015 Cadillac CTS-V\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008–2009 Pontiac G8\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000–2013 Chevrolet Tahoe, GMC Yukon, Cadillac Escalade\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003–2009 Hummer H2\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001–2013 Chevrolet Avalanche\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999–2013 Chevrolet Silverado \u0026amp; GMC Sierra (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: Do I need sealant with these gaskets?\u003c\/strong\u003e\u003cbr\u003eNo. These MLS gaskets are designed for direct installation without any additional sealants or sealing compounds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will these gaskets work with my factory exhaust manifolds?\u003c\/strong\u003e\u003cbr\u003eYes. These gaskets are compatible with various combinations of cylinder head and exhaust manifold materials, working equally well with Speed Engineering headers or factory exhaust manifolds.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: How many gaskets are included?\u003c\/strong\u003e\u003cbr\u003eThis package includes 2 gaskets — one for each bank.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What LS engines are these gaskets compatible with?\u003c\/strong\u003e\u003cbr\u003eThese gaskets are compatible with the full LS engine family including LS1, LS2, LS3, LS6, LS7, LS9, and LSX.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What vehicles use this gasket?\u003c\/strong\u003e\u003cbr\u003eThis gasket fits a wide range of LS-powered GM vehicles including the Camaro, Firebird, Corvette, GTO, CTS-V, G8, Tahoe, Yukon, Escalade, Hummer H2, Avalanche, Silverado, and Sierra. See the full applications list for specific model years.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What makes MLS gaskets better than standard gaskets?\u003c\/strong\u003e\u003cbr\u003eMulti-layer steel construction maintains torque set under extreme cylinder pressures and resists corrosion, without burning through or pushing out over time — common failure points for lower-quality composite gaskets.\u003c\/p\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228030476336,"sku":"25-1001","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_LS_Exhaust_Manifold_Gaskets_GM_LS1_LS2_LS3_LS6_25-1001.png?v=1762207570"},{"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-stainless-off-road-y-pipe","title":"Speed Engineering Off-Road Y-Pipe — 1998–2002 Chevrolet Camaro \u0026 Pontiac Firebird\/Trans Am LS1 | 25-1002","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eConnecting your Speed Engineering longtube headers to the factory cat-back on your 4th gen Camaro or Firebird? This is the Y-pipe that completes the system. Built from 3\" mandrel bent 304 natural stainless steel with TIG-welded construction and stainless band clamps included — a direct-fit, purpose-built connection between your longtube headers and the factory cat-back exhaust.\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 Y-pipe is designed for use with longtube headers only. It is NOT compatible with factory exhaust manifolds.\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\u003cstrong\u003eStainless Steel 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\n\u003cstrong\u003eFor Use with Longtube Headers Only\u003c\/strong\u003e — Not compatible with factory exhaust manifolds\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\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\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: Will this Y-pipe work with my factory exhaust manifolds?\u003c\/strong\u003e No. This Y-pipe is designed for use with 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: What size tubing does this Y-pipe use?\u003c\/strong\u003e 3\" mandrel bent tubing with stainless 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 material is this Y-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 Y-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":41228058001456,"sku":"25-1002","price":169.99,"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_Stainless_Steel_Off-Road_Y-Pipe_25-1002.jpg?v=1762207998"},{"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-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-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-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-x-pipe-kit","title":"Speed Engineering Off-Road X-Pipe Kit — 1997–2004 Chevrolet C5 Corvette | LS1\/LS6 | 25-1089","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eConnecting your Speed Engineering longtube headers to the factory axle-back on your C5 Corvette? This is the X-pipe that completes the system. Built from 3\" mandrel bent 304 natural stainless steel with TIG-welded construction and 3\" stainless band clamps included — a clean, direct-fit connection between your longtube headers and the existing axle-back on 1997–2004 C5 Corvette and C5 Z06 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:\u003c\/strong\u003e 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\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\" 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\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 C5 Corvette — 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 C5 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1998 Chevrolet Corvette C5 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Chevrolet Corvette C5 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Chevrolet Corvette C5 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Chevrolet Corvette C5 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Corvette C5 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Corvette C5 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Corvette C5 (RWD) — 5.7L LS1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet C5 Corvette Z06 — 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\"\u003e2001 Chevrolet Corvette C5 Z06 (RWD) — 5.7L LS6\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Corvette C5 Z06 (RWD) — 5.7L LS6\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Corvette C5 Z06 (RWD) — 5.7L LS6\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Corvette C5 Z06 (RWD) — 5.7L LS6\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 my factory exhaust manifolds?\u003c\/strong\u003e No. This X-pipe is designed for use with Speed Engineering longtube headers only and is not compatible with factory exhaust manifolds.\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 3\" diameter, mandrel bent for consistent flow throughout. 3\" stainless band clamps are included for installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Does this fit the C5 Z06?\u003c\/strong\u003e Yes. This X-pipe fits both the standard C5 Corvette (LS1) and the C5 Z06 (LS6) through the 2004 model year.\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 and the C6 X-pipe kit?\u003c\/strong\u003e This kit is designed for the 1997–2004 C5 Corvette platform with LS1 and LS6 engines. The C6 platform uses a different chassis and exhaust routing — see the dedicated C6 X-pipe kit for those applications.\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":41228185862192,"sku":"25-1089","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1997_2004_C5_Corvette_X-Pipe_Kit_25-1089.png?v=1762209965"},{"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-2007-2013-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-1999-2013-silverado-sierra-tahoe-yukon-escalade-shorty-headers","title":"Speed Engineering Shorty Headers — 1999–2013 Chevrolet Silverado \u0026 GMC Sierra 1500 \u0026 GM SUVs | 4.8L\/5.3L\/6.0L\/6.2L | 25-1016","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eLooking for a direct-fit manifold replacement for your GMT800 or GMT900 Silverado, Sierra, Tahoe, Yukon, Escalade, or Avalanche that bolts right in with the factory single exhaust system? Speed Engineering's 1-5\/8\" shorty headers are a mandrel bent, TIG-welded direct manifold replacement built from 304 natural stainless steel. Race version — no air or EGR fittings. Works with the factory single exhaust Y-pipe system. Dyno proven to deliver over 12 rear-wheel horsepower over stock manifolds. Tested on 1\/2 ton applications only.\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 Works on factory single exhaust system with traditional Y-pipe. Tested on 1\/2 ton applications only.\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\u003e1-5\/8\" Primary Tubes\u003c\/strong\u003e — Improved flow over stock cast iron manifolds\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e2.5\" Collectors\u003c\/strong\u003e — Direct connection to factory exhaust system\u003c\/li\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\u003eShorty Header Design\u003c\/strong\u003e — Direct manifold replacement for factory-correct fitment\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, 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\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 — 12+ RWHP gain over stock manifolds\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\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)\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\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\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\"\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\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\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\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\"\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\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\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\"\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\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\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGMC Yukon Denali (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 Denali (2WD\/4WD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 GMC Yukon Denali (2WD\/4WD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 GMC Yukon Denali (2WD\/4WD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 GMC Yukon Denali (2WD\/4WD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 GMC Yukon Denali (2WD\/4WD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 GMC Yukon Denali (2WD\/4WD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 GMC Yukon Denali (2WD\/4WD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\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\"\u003e2001 Chevrolet Avalanche (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Chevrolet Avalanche (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Chevrolet Avalanche (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Chevrolet Avalanche (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2005 Chevrolet Avalanche (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2006 Chevrolet Avalanche (2WD\/4WD) — 4.8L\/5.3L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2007 Chevrolet Avalanche (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 Avalanche (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 Avalanche (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 Avalanche (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 Avalanche (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 Avalanche (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 Avalanche (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\u003eCadillac Escalade (AWD)\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 (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Cadillac Escalade (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Cadillac Escalade (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Cadillac Escalade (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Cadillac Escalade (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Cadillac Escalade (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Cadillac Escalade (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eCadillac Escalade EXT (AWD)\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 (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Cadillac Escalade EXT (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Cadillac Escalade EXT (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Cadillac Escalade EXT (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Cadillac Escalade EXT (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Cadillac Escalade EXT (AWD) — 6.0L\/6.2L\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Cadillac Escalade EXT (AWD) — 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: What is the difference between these shorty headers and the longtube headers for this platform?\u003c\/strong\u003e Shorty headers are a direct manifold replacement that connect to your existing factory single exhaust Y-pipe system — no additional exhaust components required. Longtube headers deliver more horsepower (25+ RWHP) but require a Y-pipe or X-pipe to complete the installation. Choose shorties for an easy bolt-on upgrade; choose longtubes for maximum performance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Do these work with a dual exhaust setup?\u003c\/strong\u003e These headers work with the factory single exhaust system and traditional Y-pipe setup. They have only been tested on 1\/2 ton applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\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\"\u003e\u003cstrong\u003eQ: Will these fit 2500 or 3500 models?\u003c\/strong\u003e These headers have only been tested on 1\/2 ton applications. Fitment on 2500 or 3500 models is not confirmed.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Why do the available engine sizes change at 2007?\u003c\/strong\u003e The 2007 model year introduced the GMT900 platform, which added 6.0L and 6.2L engine availability to the lineup. 1999–2006 GMT800 trucks came with 4.8L and 5.3L engines only on the 1500 platform.\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 shorty headers are dyno proven to add over 12 rear-wheel horsepower over stock 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","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41228258607152,"sku":"25-1016","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1999_2013_Silverado_Sierra_Tahoe_Yukon_Escalade_Shorty_Headers_25-1016.png?v=1762213578"},{"product_id":"speed-engineering-2007-2013-silverado-sierra-off-road-y-pipe-25-1015","title":"Speed Engineering Off-Road Y-Pipe — 2007–2013 Chevrolet Silverado \u0026 GMC Sierra | 25-1015","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eConnecting your Speed Engineering longtube headers to the cat-back on your GMT900 Silverado or Sierra? This is the Y-pipe that completes the system. Built from 3\" mandrel bent 304 natural stainless steel with a 3.5\" exit, an optional 3\" reducer, TIG-welded construction, and stainless band clamps included. An optional wideband O₂ bung is available for tuning 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 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 for use with Speed Engineering longtube headers only\u003c\/strong\u003e — NOT compatible with factory exhaust manifolds\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eWorks with 6 speed automatic transmissions\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDepending on factory exhaust type, some cutting or welding may be required for installation\u003c\/strong\u003e\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\u003e3.5\" Y-Pipe Exit with Optional 3\" Reducer\u003c\/strong\u003e — Flexibility to connect to standard 3\" cat-back systems\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eOptional Wideband Tuning Bung\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\u003eStainless Steel 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\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 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) ⚠️ 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)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Silverado 1500 (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Silverado 1500 (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Silverado 1500 (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Silverado 1500 (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Silverado 1500 (2WD\/4WD)\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) ⚠️ 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)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 GMC Sierra 1500 (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 GMC Sierra 1500 (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 GMC Sierra 1500 (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 GMC Sierra 1500 (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 GMC Sierra 1500 (2WD\/4WD)\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)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Tahoe (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Tahoe (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Tahoe (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Tahoe (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Tahoe (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Tahoe (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Tahoe (2WD\/4WD)\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)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 GMC Yukon (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 GMC Yukon (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 GMC Yukon (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 GMC Yukon (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 GMC Yukon (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 GMC Yukon (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 GMC Yukon (2WD\/4WD)\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)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Cadillac Escalade (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Cadillac Escalade (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Cadillac Escalade (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Cadillac Escalade (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Cadillac Escalade (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Cadillac Escalade (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Cadillac Escalade (2WD\/4WD)\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)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Cadillac Escalade EXT (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Cadillac Escalade EXT (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Cadillac Escalade EXT (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Cadillac Escalade EXT (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Cadillac Escalade EXT (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Cadillac Escalade EXT (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Cadillac Escalade EXT (2WD\/4WD)\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)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2008 Chevrolet Avalanche (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2009 Chevrolet Avalanche (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2010 Chevrolet Avalanche (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2011 Chevrolet Avalanche (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2012 Chevrolet Avalanche (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2013 Chevrolet Avalanche (2WD\/4WD)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2014 Chevrolet Avalanche (2WD\/4WD)\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 Y-pipe work with my factory exhaust manifolds?\u003c\/strong\u003e No. This Y-pipe is designed for use 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: Will this Y-pipe work with my transmission?\u003c\/strong\u003e This Y-pipe works with 6 speed automatic transmissions. Depending on your factory exhaust type, some cutting or welding may be required for proper installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What is the exit diameter on this Y-pipe?\u003c\/strong\u003e This Y-pipe features a 3.5\" exit with an optional 3\" reducer available for connecting to standard 3\" cat-back systems.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\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 leading-[1.7]\"\u003e\u003cstrong\u003eQ: What material is this Y-pipe made from?\u003c\/strong\u003e 304 natural stainless steel with mandrel-bent tubing and TIG-welded construction. 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 Y-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":41228260540464,"sku":"25-1015","price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_2007-2013_Silverado_Sierra_Off-Road_Y-Pipe.png?v=1762214838"},{"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-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-1982-1992-camaro-firebird-ls-swap-ls1-lsa-1-7-8-longtube-headers","title":"Speed Engineering LS Swap 1-7\/8\" Longtube Headers — 1982–1992 Chevrolet Camaro \u0026 Pontiac Firebird\/Trans Am | LS1\/LS2\/LS3\/LS6\/LSA | 25-1035","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eDropping an LS into your 3rd Gen Camaro or Firebird? Speed Engineering's 1-7\/8\" LS swap longtube headers are engineered specifically for the 1982–1992 third-gen F-body platform — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel with a merge spike and standard graphite manifold gaskets included. Compatible with the full LS engine family from 4.8L through 6.2L including LS1, LS2, LS3, LS6, and LSA. 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\"\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\u003eLS swap applications only\u003c\/strong\u003e — these headers are NOT compatible with standard SBC or BBC engines\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e4L80E or older Turbo 350\/400 transmission\u003c\/strong\u003e — bellhousing ears may need to be trimmed for proper 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\"\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 swap 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\u003cstrong\u003eDyno Proven\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, 6.2L, LS1, LS2, LS3, LS6, and LSA Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 LS 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\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 All applications listed are LS swap conversions. These headers are not compatible with the original factory engines in these vehicles.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet Camaro — 3rd Gen F-Body (RWD) — LS Swap\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\"\u003e1982 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1983 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1984 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1985 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1986 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1987 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1988 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1989 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1990 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1991 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1992 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003ePontiac Firebird \u0026amp; Trans Am — 3rd Gen F-Body (RWD) — LS Swap\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\"\u003e1982 Pontiac Firebird\/Trans Am (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1983 Pontiac Firebird\/Trans Am (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1984 Pontiac Firebird\/Trans Am (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1985 Pontiac Firebird\/Trans Am (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1986 Pontiac Firebird\/Trans Am (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1987 Pontiac Firebird\/Trans Am (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1988 Pontiac Firebird\/Trans Am (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1989 Pontiac Firebird\/Trans Am (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1990 Pontiac Firebird\/Trans Am (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1991 Pontiac Firebird\/Trans Am (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1992 Pontiac Firebird\/Trans Am (RWD) — LS Swap\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 work with my SBC or BBC engine?\u003c\/strong\u003e No. These headers are designed for LS series engine swaps only and are not compatible with standard small block Chevy or big block Chevy engines.\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 1993–1997 LT1 longtube headers (25-1019)?\u003c\/strong\u003e Part 25-1035 is for 1982–1992 3rd Gen Camaro and Firebird LS swap conversions. Part 25-1019 is for 1993–1997 4th Gen Camaro and Firebird with the factory Gen 2 LT1 engine — a completely different chassis and engine generation. Make sure to select the correct headers for your vehicle and engine combination.\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 1998–2002 Camaro\/Firebird LS1 headers (25-1020)?\u003c\/strong\u003e Part 25-1035 is for 1982–1992 3rd Gen F-body LS swap conversions. Part 25-1020 is for 1998–2002 4th Gen Camaro and Firebird with the factory LS1 engine.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will these fit with a 4L80E or older Turbo 350\/400 transmission?\u003c\/strong\u003e These headers may require trimming of the bellhousing ears on 4L80E or older Turbo 350\/400 transmissions for proper clearance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What LS 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, 6.2L, LS1, LS2, LS3, LS6, and LSA.\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 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 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":41241967755312,"sku":"25-1035","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_1982_1992_Camaro_Firebird_LS_Swap_1-7_8_Longtube_Headers_LS1_LS2_LS3_LS6_LSA_25-1035.jpg?v=1762205486"},{"product_id":"speed-engineering-lt-swap-1-7-8in-longtube-headers-a-body-f-body-x-body-lt1-lt4","title":"Speed Engineering 1-7\/8\" LT Swap Longtube Headers — A-Body, F-Body \u0026 X-Body | Gen V LT1\/LT4 5.3L\/6.2L | 25-1058","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]\"\u003eDropping a Gen V LT engine into your classic Camaro, Chevelle, Nova, or other classic GM platform? Speed Engineering's 1-7\/8\" LT swap longtube headers are built specifically for these applications — mandrel bent, TIG-welded, and CNC-machined for a precise fit across the most popular classic GM LT conversion platforms. Compatible with 5.3L and 6.2L LT1 and LT4 engines. Dyno proven and built from 304 natural stainless steel with a merge spike and standard graphite manifold gaskets 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\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\u003eGen V LT direct injection engine swaps only\u003c\/strong\u003e — these headers are NOT compatible with SBC or BBC engines\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eConfirm your vehicle is an A-body chassis before purchasing\u003c\/strong\u003e — some models were also produced in G-body applications and will have fitment issues on a G-body platform\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDue to older vehicle frame clearance, headers fit very tight and require Speed Engineering LT spark plug wires\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLT4 engines\u003c\/strong\u003e may require an oil cooler adapter or delete kit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e4L80E or older Turbo 350\/400 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\u003eNote:\u003c\/strong\u003e Installed photos show 1-7\/8\" headers with 1\" offset back motor mounts\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\" 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 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\u003cstrong\u003eDyno Proven\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 LT 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\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 All applications listed are Gen V LT swap conversions. These headers are not compatible with the original factory engines in these vehicles.\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\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Camaro — F-Body (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\"\u003e1970 Chevrolet Camaro (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Chevrolet Camaro (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Chevrolet Camaro (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Chevrolet Camaro (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Chevrolet Camaro (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Chevrolet Camaro (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet Camaro (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet Camaro (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Chevrolet Camaro (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Chevrolet Camaro (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Chevrolet Camaro (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Chevrolet Camaro (RWD) — LT Swap\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\u003ePontiac Firebird — F-Body (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\"\u003e1970 Pontiac Firebird (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Pontiac Firebird (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Pontiac Firebird (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Pontiac Firebird (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Pontiac Firebird (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Pontiac Firebird (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Pontiac Firebird (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Pontiac Firebird (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Pontiac Firebird (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Pontiac Firebird (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Pontiac Firebird (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Pontiac Firebird (RWD) — LT Swap\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\u003eChevrolet Chevelle — A-Body (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\"\u003e1964 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet Chevelle (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet Chevelle (RWD) — LT Swap\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\u003eChevrolet Nova — X-Body (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\"\u003e1975 Chevrolet Nova (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet Nova (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet Nova (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Chevrolet Nova (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Chevrolet Nova (RWD) — LT Swap\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\u003eChevrolet El Camino — A-Body (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\"\u003e1964 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Chevrolet El Camino (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Chevrolet El Camino (RWD) — LT Swap\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\u003eChevrolet Monte Carlo — A-Body (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\"\u003e1970 Chevrolet Monte Carlo (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Chevrolet Monte Carlo (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Chevrolet Monte Carlo (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Chevrolet Monte Carlo (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Chevrolet Monte Carlo (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Chevrolet Monte Carlo (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet Monte Carlo (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet Monte Carlo (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Chevrolet Monte Carlo (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Chevrolet Monte Carlo (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Chevrolet Monte Carlo (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Chevrolet Monte Carlo (RWD) — LT Swap\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\u003ePontiac LeMans — A-Body (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\"\u003e1964 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Pontiac LeMans (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Pontiac LeMans (RWD) — LT Swap\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\u003ePontiac GTO — A-Body (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\"\u003e1964 Pontiac GTO (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Pontiac GTO (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Pontiac GTO (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Pontiac GTO (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Pontiac GTO (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Pontiac GTO (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Pontiac GTO (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Pontiac GTO (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Pontiac GTO (RWD) — LT Swap\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\u003ePontiac Grand Prix — A-Body (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\"\u003e1977 Pontiac Grand Prix (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Pontiac Grand Prix (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Pontiac Grand Prix (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Pontiac Grand Prix (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Pontiac Grand Prix (RWD) — LT Swap\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\u003eOldsmobile Cutlass — A-Body (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\"\u003e1964 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Oldsmobile Cutlass (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Oldsmobile Cutlass (RWD) — LT Swap\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\u003eBuick Skylark — A-Body (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\"\u003e1964 Buick Skylark (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Buick Skylark (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Buick Skylark (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Buick Skylark (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Buick Skylark (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Buick Skylark (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Buick Skylark (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Buick Skylark (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Buick Skylark (RWD) — LT Swap\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\u003eBuick Grand National — G-Body (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\"\u003e1978 Buick Grand National (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Buick Grand National (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Buick Grand National (RWD) — LT Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Buick Grand National (RWD) — LT Swap\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\u003eChassis Note:\u003c\/strong\u003e Confirm your vehicle is an A-body or F-body chassis before purchasing. Some models were also produced in G-body applications and will have fitment issues on a G-body platform.\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\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: Will these headers work with my SBC or BBC engine?\u003c\/strong\u003e No. These headers are designed for Gen V LT direct injection engine swaps only and are not compatible with standard small block Chevy or big block Chevy engines.\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 special spark plug wires?\u003c\/strong\u003e Yes. Due to tight frame clearance on older vehicle platforms, Speed Engineering LT spark plug wires are required for proper fitment with these 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: Will my vehicle have fitment issues if it is a G-body?\u003c\/strong\u003e Yes. These headers are designed for A-body and F-body chassis applications. Some vehicle models were produced in both A-body and G-body configurations — confirm your chassis type before purchasing as fitment issues will occur on G-body applications.\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 these work with my LT4 engine?\u003c\/strong\u003e Yes, but the LT4 engine may require an oil cooler adapter or delete kit for proper fitment with these 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: Will these fit with a 4L80E or older Turbo 350\/400 transmission?\u003c\/strong\u003e These headers may require trimming of the bellhousing ears on 4L80E or older Turbo 350\/400 transmissions for proper clearance.\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 GM Gen V LT V8 engines including 5.3L, 6.2L, LT1, and LT4.\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 a merge spike.\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","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41241999081520,"sku":"25-1058","price":329.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_LT_Swap_1-7_8_Longtube_Headers_A-Body_F-Body_X-Body_LT1_LT4_Engines_25-1058.png?v=1762269803"},{"product_id":"speed-engineering-ls-swap-1-7-8in-longtube-headers-a-body-f-body-x-body-ls1-lsa","title":"Speed Engineering LS Swap 1-7\/8\" Longtube Headers — A-Body, F-Body \u0026 X-Body | LS1\/LS2\/LS3\/LS6\/LSA | 25-1026","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eDropping an LS into your classic Camaro, Chevelle, Nova, GTO, or any number of popular GM A-body and F-body platforms? Speed Engineering's 1-7\/8\" LS swap longtube headers are engineered across the most popular classic GM chassis — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel with a merge spike and standard graphite manifold gaskets included. Compatible with the full LS engine family from 4.8L through 6.2L including LS1, LS2, LS3, LS6, and LSA.\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\u003eA-body chassis only\u003c\/strong\u003e — confirm your vehicle is on the A-body chassis before ordering. Some model names (El Camino, Monte Carlo, Grand Prix, Cutlass) also came in G-body applications in certain years. These headers will have fitment issues on a G-body application\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLS swap applications only\u003c\/strong\u003e — these headers are NOT compatible with standard SBC or BBC engines\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDue to older vehicle frame clearance, headers fit very tight and require Speed Engineering spark plug wires\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e4L80E or older Turbo 350\/400 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\u003eNote:\u003c\/strong\u003e Installed photos show 1-7\/8\" headers with 1\" offset back motor mounts\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 Spike\u003c\/strong\u003e — Maximum flow from cylinder head to collector for aggressive LS swap 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\u003cstrong\u003eDyno Proven\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, 6.2L, LS1, LS2, LS3, LS6, and LSA Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 LS 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\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 All applications listed are LS swap conversions. These headers are not compatible with the original factory engines in these vehicles. \u003cstrong\u003eA-body chassis only\u003c\/strong\u003e — will NOT fit G-body applications.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGM F-Body (RWD) — LS Swap\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eChevrolet Camaro\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\"\u003e1970 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Chevrolet Camaro (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003ePontiac Firebird\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\"\u003e1970 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Pontiac Firebird (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGM A-Body (RWD) — LS Swap\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eChevrolet Chevelle\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\"\u003e1964 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet Chevelle (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eChevrolet El Camino\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\"\u003e1964 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Chevrolet El Camino (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eChevrolet Monte Carlo\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\"\u003e1970 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Chevrolet Monte Carlo (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003ePontiac GTO\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\"\u003e1964 Pontiac GTO (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Pontiac GTO (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Pontiac GTO (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Pontiac GTO (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Pontiac GTO (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Pontiac GTO (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Pontiac GTO (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Pontiac GTO (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Pontiac GTO (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003ePontiac LeMans\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\"\u003e1964 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Pontiac LeMans (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003ePontiac Grand Prix\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\"\u003e1977 Pontiac Grand Prix (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Pontiac Grand Prix (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Pontiac Grand Prix (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Pontiac Grand Prix (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Pontiac Grand Prix (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eOldsmobile Cutlass\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\"\u003e1964 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Oldsmobile Cutlass (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBuick Skylark\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\"\u003e1964 Buick Skylark (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Buick Skylark (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Buick Skylark (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Buick Skylark (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Buick Skylark (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Buick Skylark (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Buick Skylark (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Buick Skylark (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Buick Skylark (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eBuick Grand National\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\"\u003e1978 Buick Grand National (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Buick Grand National (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Buick Grand National (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Buick Grand National (RWD) — LS Swap ⚠️ A-body chassis only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eGM X-Body (RWD) — LS Swap\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eChevrolet Nova\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\"\u003e1975 Chevrolet Nova (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet Nova (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet Nova (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Chevrolet Nova (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Chevrolet Nova (RWD) — LS Swap\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: How do I know if my vehicle is an A-body or G-body?\u003c\/strong\u003e This is an important distinction. The A-body and G-body share several model names across different years. Generally, Chevelles, El Caminos (1964–1977), GTOs (1964–1972), and early Monte Carlos (1970–1977) are A-body. Later Monte Carlos (1978–1988), El Caminos (1978–1987), and Grand Prix (1978+) transitioned to the G-body platform. If you're unsure, verify your chassis code before ordering as these headers will have fitment issues on G-body applications.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will these headers work with my SBC or BBC engine?\u003c\/strong\u003e No. These headers are designed for LS series engine swaps only and are not compatible with standard small block Chevy or big block Chevy engines.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Do I need special spark plug wires?\u003c\/strong\u003e Yes. Due to tight frame clearance on older classic GM platforms, Speed Engineering spark plug wires are required for proper fitment with these headers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will these fit with a 4L80E or older Turbo 350\/400 transmission?\u003c\/strong\u003e These headers may require trimming of the bellhousing ears on 4L80E or older Turbo 350\/400 transmissions for proper clearance.\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 1-3\/4\" LS swap multi-platform headers (25-1066)?\u003c\/strong\u003e The primary tube diameter is the key difference. The 1-7\/8\" headers offer a step up in flow for more aggressive builds with supporting modifications. The 1-3\/4\" headers are a strong choice for most LS swap builds across a broad RPM range. Both cover similar classic GM platforms.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What LS 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, 6.2L, LS1, LS2, LS3, LS6, and LSA.\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 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 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":41242009436208,"sku":"25-1026","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_LS_Swap_1-7_8_Longtube_Headers_A-Body_F-Body_X-Body_LS1_LS2_LS3_LS6_LSA_25-1026.png?v=1762270482"},{"product_id":"speed-engineering-ls-swap-1-7-8in-longtube-headers-1960-1987-c10-trucks-ls1-lsa","title":"Speed Engineering LS Swap 1-7\/8\" Longtube Headers — 1960–1987 Chevrolet C10 Truck (2WD) | LS1\/LS2\/LS3\/LS6\/LSA | 25-1026","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eDropping an LS into your classic C10? Speed Engineering's 1-7\/8\" LS swap longtube headers are engineered specifically for the 1960–1987 C10 platform with excellent ground clearance for air ride and lowered suspension applications — mandrel bent, TIG-welded, and CNC-machined from 304 natural stainless steel with merge spikes and standard graphite manifold gaskets included. Compatible with the full LS engine family from 4.8L through 6.2L including LS1, LS2, LS3, LS6, and LSA. These headers do not hang below the frame and have been confirmed to fit on Roadster Shop (with Pro spindles), Porterbuilt, Chevy's Block, and other front drop members with air ride and coil-over suspension.\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\u003cstrong\u003e2WD only — does NOT fit 4WD (K10)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e1960–1966 model years require slider engine mounts\u003c\/strong\u003e to clear the front crossmember\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLS swap applications only\u003c\/strong\u003e — these headers are NOT compatible with standard SBC or BBC engines\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDue to older vehicle frame clearance, headers fit very tight and require Speed Engineering spark plug wires\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e4L80E or older Turbo 350\/400 transmission\u003c\/strong\u003e — bellhousing ears may need to be trimmed for proper 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\"\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 swap 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\n\u003cstrong\u003eExcellent Ground Clearance\u003c\/strong\u003e — Engineered for air ride and lowered suspension applications, including popular aftermarket front clips\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\u003eDyno Proven\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, 6.2L, LS1, LS2, LS3, LS6, and LSA Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 LS 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\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 All applications listed are LS swap conversions for the 2WD C10. These headers are not compatible with the original factory engines in these vehicles and do NOT fit 4WD (K10) applications.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eChevrolet C10 Truck (2WD, RWD) — LS Swap\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\"\u003e1960 Chevrolet C10 Truck (2WD) — LS Swap ⚠️ Requires slider engine mounts to clear front crossmember\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1961 Chevrolet C10 Truck (2WD) — LS Swap ⚠️ Requires slider engine mounts to clear front crossmember\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1962 Chevrolet C10 Truck (2WD) — LS Swap ⚠️ Requires slider engine mounts to clear front crossmember\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1963 Chevrolet C10 Truck (2WD) — LS Swap ⚠️ Requires slider engine mounts to clear front crossmember\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1964 Chevrolet C10 Truck (2WD) — LS Swap ⚠️ Requires slider engine mounts to clear front crossmember\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Chevrolet C10 Truck (2WD) — LS Swap ⚠️ Requires slider engine mounts to clear front crossmember\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Chevrolet C10 Truck (2WD) — LS Swap ⚠️ Requires slider engine mounts to clear front crossmember\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1982 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1983 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1984 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1985 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1986 Chevrolet C10 Truck (2WD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1987 Chevrolet C10 Truck (2WD) — LS Swap\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 K10 4WD truck?\u003c\/strong\u003e\u003cbr\u003eNo. These headers do NOT fit 4WD applications. They are designed for 2WD C10 trucks only.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Do these headers work with air ride or lowered suspension?\u003c\/strong\u003e\u003cbr\u003eYes. These headers do not hang below the frame and offer excellent ground clearance for air ride and lowered suspension applications. They have been confirmed to fit on Roadster Shop (with Pro spindles), Porterbuilt, Chevy's Block, and other popular aftermarket front clips with air ride and coil-over suspension.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Do 1960–1966 trucks need anything special?\u003c\/strong\u003e\u003cbr\u003eYes. 1960–1966 model years require slider engine mounts to clear the front crossmember.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will these headers work with my SBC or BBC engine?\u003c\/strong\u003e\u003cbr\u003eNo. These headers are designed for LS series engine swaps only and are not compatible with standard small block Chevy or big block Chevy engines.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Do I need special spark plug wires?\u003c\/strong\u003e\u003cbr\u003eYes. Due to tight frame clearance on classic C10 platforms, Speed Engineering spark plug wires are required for proper fitment with these headers.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: Will these fit with a 4L80E or older Turbo 350\/400 transmission?\u003c\/strong\u003e\u003cbr\u003eThese headers may require trimming of the bellhousing ears on 4L80E or older Turbo 350\/400 transmissions for proper clearance.\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 SBC C10\/K10 longtubes (25-1236)?\u003c\/strong\u003e\u003cbr\u003ePart 25-1026 is for LS engine swaps on 2WD C10 trucks only, with 1-7\/8\" primaries optimized for ground clearance on lowered and air ride builds. Part 25-1236 is for small block Chevy (SBC) applications and fits both 2WD C10 and 4WD K10. Make sure you select headers matching your engine family and drivetrain.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eQ: What LS engines are these headers compatible with?\u003c\/strong\u003e\u003cbr\u003eThese headers are compatible with GM LS V8 engines including 4.8L, 5.3L, 6.0L, 6.2L, LS1, LS2, LS3, LS6, and LSA.\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 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\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":41242108657712,"sku":"25-1026","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_LS_Swap_1-7_8_Longtube_Headers_1960_1987_C10_Trucks_LS1_LS2_LS3_LS6_LSA_25-1026.png?v=1762272641"},{"product_id":"speed-engineering-ls-swap-1-3-4in-longtube-headers-1960-1987-c10-trucks-ls1-lsa","title":"Speed Engineering LS Swap 1-3\/4\" Longtube Headers — 1960–1987 Chevrolet C10 Truck | LS1\/LS2\/LS3\/LS6\/LSA | 25-1025","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eDropping an LS into your C10? Speed Engineering's 1-3\/4\" LS swap longtube headers are built specifically for the classic C10 platform — mandrel bent, TIG-welded, and CNC-machined for a precise, port-matched fit across the full 1960–1987 C10 run. One of the standout features of this header is the ground clearance design — the headers do not hang below the frame, making them a great choice for lowered builds and air ride applications. Tested and confirmed to work on factory chassis as well as Choppin Block, Roadster Shop (with Pro spindles), Porterbuilt, and other aftermarket front drop members with air ride and coilover suspension. Compatible with the full LS engine family from 4.8L through 6.2L including LS1, LS2, LS3, LS6, and LSA. Dyno proven.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eBuilt from 304 natural stainless steel with a merge spike and 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 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\u003e1960–1966 C10 applications require slider engine mounts\u003c\/strong\u003e to clear the front crossmember\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003e2WD applications only — will NOT fit 4WD C10 trucks\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLS swap applications only\u003c\/strong\u003e — these headers are NOT compatible with standard SBC or BBC engines\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDue to older vehicle frame clearance, headers fit very tight and require Speed Engineering spark plug wires\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e4L80E or older Turbo 350\/400 transmission\u003c\/strong\u003e — bellhousing ears may need to be trimmed for proper 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\u003e1-3\/4\" 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 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\n\u003cstrong\u003eHeaders Do Not Hang Below the Frame\u003c\/strong\u003e — Engineered for excellent ground clearance on air ride and lowered applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWorks on Factory Chassis and Most Aftermarket Chassis\u003c\/strong\u003e — Tested on Choppin Block, Roadster Shop (with Pro spindles), Porterbuilt, and other front drop members\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\u003eDyno Proven\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, 6.2L, LS1, LS2, LS3, LS6, and LSA Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 LS 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\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 All applications listed are LS swap conversions. 2WD applications only — will NOT fit 4WD trucks. 1960–1966 applications require slider engine mounts to clear the front crossmember.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet C10 Truck (2WD) — LS Swap\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\"\u003e1960 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1961 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1962 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1963 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1964 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1965 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1966 Chevrolet C10 Truck (RWD) — LS Swap ⚠️ Requires slider engine mounts\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1967 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1968 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1969 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1970 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1971 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1972 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1973 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1974 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1975 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1976 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1977 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1978 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1982 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1983 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1984 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1985 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1986 Chevrolet C10 Truck (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1987 Chevrolet C10 Truck (RWD) — LS Swap\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 1960–1966 C10s require any special motor mounts?\u003c\/strong\u003e Yes. 1960–1966 C10 applications require slider engine mounts to clear the front crossmember for proper header fitment.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these headers fit my 4WD C10?\u003c\/strong\u003e No. These headers are designed for 2WD C10 applications only and will not fit 4WD trucks.\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 or air ride C10 builds?\u003c\/strong\u003e Yes. These headers are specifically engineered so that they do not hang below the frame, making them an excellent choice for lowered builds and air ride applications. They have been tested on Choppin Block, Roadster Shop (with Pro spindles), Porterbuilt, and other aftermarket front drop members with air ride and coilover suspension.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these headers work with my SBC or BBC engine?\u003c\/strong\u003e No. These headers are designed for LS series engine swaps only and are not compatible with standard small block Chevy or big block Chevy engines.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do I need special spark plug wires?\u003c\/strong\u003e Yes. Due to tight frame clearance on older C10 platforms, Speed Engineering spark plug wires are required for proper fitment with these headers.\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 or older Turbo 350\/400 transmission?\u003c\/strong\u003e These headers may require trimming of the bellhousing ears on 4L80E or older Turbo 350\/400 transmissions for proper clearance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What LS 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, 6.2L, LS1, LS2, LS3, LS6, and LSA.\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 a merge spike.\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":41242110394416,"sku":"25-1025","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_LS_Swap_1-3_4_Longtube_Headers_1960_1987_C10_Trucks_LS1_LS2_LS3_LS6_LSA_25-1025.png?v=1762272806"},{"product_id":"speed-engineering-2015-2023-ford-mustang-5-0l-coyote-1-7-8-longtube-headers-xpipe-kit","title":"Speed Engineering 1-7\/8\" Longtube Headers \u0026 X-Pipe Full Kit — 2015–2023 Ford Mustang GT 5.0L Coyote | 25-1085","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe factory exhaust manifolds on your S550 Mustang GT are a known restriction. Speed Engineering's 1-7\/8\" longtube headers replace them with a free-flowing, direct-fit stainless system that unlocks real horsepower, improves throttle response, and gives your Coyote the exhaust note it deserves. Paired with a 3\" off-road X-pipe that connects directly to the existing axle-back location, this is a complete bolt-on system — everything you need is in the box.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eDyno proven to gain over 25 rear-wheel horsepower. Built from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined port-matched flanges, 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\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\u003cbr\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\"\u003e1 Pair of 1-7\/8\" Stainless Longtube Headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1 Three-inch Off-Road X-Pipe \/ Connection Pipe\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2 MLS Exhaust Gaskets\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2 O₂ Sensor Extension Harnesses\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]\"\u003eOptional: Zinc Coated Header Bolts (M10x1.5) can be added at the time of purchase.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\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\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 Merge 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 restriction\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCNC Machined Port-Matched 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 5.0L Coyote applications\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eV8 Only\u003c\/strong\u003e — Compatible with 5.0L Coyote engines only\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 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\"\u003eO₂ sensor extension harnesses are required and included — upstream O₂ bungs will be located further back with longtube headers\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRear downstream O₂ sensors will no longer be used — a check engine light for catalyst efficiency will appear and must be disabled via PCM tuning\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eHeader bolt thread pitch varies by Coyote generation — verify before installation:\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\"\u003eEarly Gen 1 (2011) and some Gen 3 (2018+): M10x1.25\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLate Gen 1 (2011) and Gen 2 (2015–2017): M10x1.5\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003eFord Mustang GT — 5.0L Coyote (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\"\u003e2015 Ford Mustang GT (RWD) — 5.0L Coyote\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2016 Ford Mustang GT (RWD) — 5.0L Coyote\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2017 Ford Mustang GT (RWD) — 5.0L Coyote\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2018 Ford Mustang GT (RWD) — 5.0L Coyote\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2019 Ford Mustang GT (RWD) — 5.0L Coyote\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2020 Ford Mustang GT (RWD) — 5.0L Coyote\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2021 Ford Mustang GT (RWD) — 5.0L Coyote\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2022 Ford Mustang GT (RWD) — 5.0L Coyote\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2023 Ford Mustang GT (RWD) — 5.0L Coyote\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 included in this kit?\u003c\/strong\u003e The kit includes a pair of 1-7\/8\" stainless longtube headers, a 3\" off-road X-pipe, two MLS exhaust gaskets, and two O₂ sensor extension harnesses. Zinc coated header bolts (M10x1.5) are available as an optional add-on at the time of purchase.\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 these headers?\u003c\/strong\u003e Yes. The rear downstream O₂ sensors are no longer used with this system, which will trigger a catalyst efficiency code. This must be resolved through PCM tuning — it cannot be cleared by simply resetting the ECU.\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, and they are included in the kit. The upstream O₂ sensor bungs are positioned further back with longtube headers, so extensions are required for proper sensor placement.\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 5.0L Coyote Mustang?\u003c\/strong\u003e Speed Engineering's 1-7\/8\" longtube headers are dyno proven to add over 25 rear-wheel horsepower on 5.0L Coyote 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 header bolt size do I need for my Mustang GT?\u003c\/strong\u003e It depends on your Coyote generation. Early Gen 1 (2011) and some Gen 3 (2018+) engines use M10x1.25 bolts. Late Gen 1 (2011) and Gen 2 (2015–2017) engines use M10x1.5 bolts. Verify your thread pitch before installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these headers work with my existing axle-back exhaust?\u003c\/strong\u003e Yes. The 3\" X-pipe included in the kit connects directly to the factory axle-back location, making this a bolt-on system compatible with most aftermarket and stock axle-back setups.\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":"2015-2017 \/ Do Not Add","offer_id":42496624820272,"sku":"25-1085","price":769.96,"currency_code":"USD","in_stock":true},{"title":"2015-2017 \/ Add Zinc Coated Header Bolts (M10x1.5)","offer_id":43249559207984,"sku":null,"price":779.95,"currency_code":"USD","in_stock":true},{"title":"2018-2023 \/ Do Not Add","offer_id":42496624853040,"sku":"25-1085","price":769.96,"currency_code":"USD","in_stock":true},{"title":"2018-2023 \/ Add Zinc Coated Header Bolts (M10x1.5)","offer_id":43249559240752,"sku":null,"price":779.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/2015-2017_Mustang_FULL_KIT.jpg?v=1771863839"},{"product_id":"turbosmart-opr-v2-turbo-oil-pressure-regulator","title":"Turbosmart OPR V2 Turbo Oil Pressure Regulator","description":"Turbosmart OPR V2 Turbo Oil Pressure Regulator","brand":"Turbosmart","offers":[{"title":"Default Title","offer_id":41274588790832,"sku":"TURTS-0811-0012","price":170.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/c8ef1ffa4e2d4f76de89ae015e20dfb3.jpg?v=1712372954"},{"product_id":"accelerator-pump-nozzle-0-035","title":"Quick Fuel Technology Accelerator Pump Nozzle (.035\") 21-35QFT","description":"Accelerator Pump Nozzle (.035\") - Exclusive stream-lined design reduces pull-over at high RPM. Each squirter is stamped for identification, sold individually, and includes replacement gaskets.\u003cp\u003e\u003cbr\u003eQuick Fuel Technology Accelerator Pump Nozzle (.035\") 21-35QFT\u003c\/p\u003e\u003cp\u003e\u003cbr\u003eSpecifications:\u003cbr\u003e\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eQuick Fuel Technology\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCategory\u003c\/td\u003e\n\u003ctd\u003eAir and Fuel Delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmission Code\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3390\u003c\/td\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNozzle Size\u003c\/td\u003e\n\u003ctd\u003e0.035\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNozzle Style\u003c\/td\u003e\n\u003ctd\u003eStraight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epart type\u003c\/td\u003e\n\u003ctd\u003eCarburetor Accelerator Pump Nozzle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eStraight Discharge Nozzles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSub Category\u003c\/td\u003e\n\u003ctd\u003eCarburetion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eManufacturer's Limited 90 Day Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eQuick Fuel Technology\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCategory\u003c\/td\u003e\n\u003ctd\u003eAir and Fuel Delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmission Code\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3390\u003c\/td\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNozzle Size\u003c\/td\u003e\n\u003ctd\u003e0.035\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNozzle Style\u003c\/td\u003e\n\u003ctd\u003eStraight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epart type\u003c\/td\u003e\n\u003ctd\u003eCarburetor Accelerator Pump Nozzle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eStraight Discharge Nozzles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSub Category\u003c\/td\u003e\n\u003ctd\u003eCarburetion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eManufacturer's Limited 90 Day Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_INV\u003c\/td\u003e\n\u003ctd\u003eAccelerator Pump Nozzle (.035)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_DES\u003c\/td\u003e\n\u003ctd\u003eAccelerator Pump Nozzle (.035\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_EXT\u003c\/td\u003e\n\u003ctd\u003eQuantity of one\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_MKT\u003c\/td\u003e\n\u003ctd\u003eAccelerator Pump Nozzle (.035\") - Exclusive stream-lined design reduces pull-over at high RPM. Each squirter is stamped for identification, sold individually, and includes replacement gaskets.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eExclusive design to reduce pull-over\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eStamped for easy identification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eGaskets included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_INV\u003c\/td\u003e\n\u003ctd\u003eAccelerator Pump Nozzle (.035)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_DES\u003c\/td\u003e\n\u003ctd\u003eAccelerator Pump Nozzle (.035\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_EXT\u003c\/td\u003e\n\u003ctd\u003eQuantity of one\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_MKT\u003c\/td\u003e\n\u003ctd\u003eAccelerator Pump Nozzle (.035\") - Exclusive stream-lined design reduces pull-over at high RPM. Each squirter is stamped for identification, sold individually, and includes replacement gaskets.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eExclusive design to reduce pull-over\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eStamped for easy identification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eGaskets included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Quick Fuel Technology","offers":[{"title":"Default Title","offer_id":41305539313712,"sku":"BJVK_21-35QFT","price":15.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/QFT21-35.jpg?v=1712928082"},{"product_id":"flowtech-purple-hornie-muffler-3-00in-2-25in-50230flt","title":"FlowTech Flowtech Purple Hornies Glasspack 50230FLT","description":"The classic Purple Hornie tubular design glasspack mufflers give sound and performance gains that are more than impressive - they're wild! The 16-gauge, 3.5\" diameter steel shell encloses an interior spiral louver baffle design that increases exhaust velocity while decreasing backpressure, projecting the sound waves into a temperature fibermat material. Available in an 18\" case length with 2.250\" slip-fit or choose from three different styles of 3\" three-hole direct-header-mount designs.\u003cp\u003e\u003cbr\u003eFlowTech Flowtech Purple Hornies Glasspack 50230FLT\u003c\/p\u003e\u003cp\u003e\u003cbr\u003eSpecifications:\u003cbr\u003e\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003e614\u003c\/td\u003e\n\u003ctd\u003e3.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e615\u003c\/td\u003e\n\u003ctd\u003e18.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e621\u003c\/td\u003e\n\u003ctd\u003eAluminized Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e616\u003c\/td\u003e\n\u003ctd\u003e3.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalifornia Proposition 65\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1882\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003ePurple\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1161\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003ePainted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3390\u003c\/td\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e617\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e618\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e601\u003c\/td\u003e\n\u003ctd\u003e3.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e619\u003c\/td\u003e\n\u003ctd\u003eCenter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet Outside Diameter\u003c\/td\u003e\n\u003ctd\u003e3.12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e620\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e596\u003c\/td\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1174\u003c\/td\u003e\n\u003ctd\u003eAbsorption \/ Glasspack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e622\u003c\/td\u003e\n\u003ctd\u003e2.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e304\u003c\/td\u003e\n\u003ctd\u003eCenter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet Outside Diameter\u003c\/td\u003e\n\u003ctd\u003e3.12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e623\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e598\u003c\/td\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8971\u003c\/td\u003e\n\u003ctd\u003e24.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e624\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound Level\u003c\/td\u003e\n\u003ctd\u003eAggressive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e626\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3145\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFlowtech Exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCategory\u003c\/td\u003e\n\u003ctd\u003eExhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmission Code\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMuffler Series\u003c\/td\u003e\n\u003ctd\u003ePurple Hornies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eStreet Mufflers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Type\u003c\/td\u003e\n\u003ctd\u003eClassic Muscle Car\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Type\u003c\/td\u003e\n\u003ctd\u003eStreet Rod\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Type\u003c\/td\u003e\n\u003ctd\u003eTruck\/SUV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarning\u003c\/td\u003e\n\u003ctd\u003eCalifornia Proposition 65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9957\u003c\/td\u003e\n\u003ctd\u003eSlip-Fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9958\u003c\/td\u003e\n\u003ctd\u003eSlip-Fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epart type\u003c\/td\u003e\n\u003ctd\u003eExhaust Muffler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSub Category\u003c\/td\u003e\n\u003ctd\u003eMufflers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11739\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11740\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e614\u003c\/td\u003e\n\u003ctd\u003e3.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e615\u003c\/td\u003e\n\u003ctd\u003e18.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e621\u003c\/td\u003e\n\u003ctd\u003eAluminized Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e616\u003c\/td\u003e\n\u003ctd\u003e3.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalifornia Proposition 65\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1882\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003ePurple\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1161\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003ePainted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3390\u003c\/td\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e617\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e618\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e601\u003c\/td\u003e\n\u003ctd\u003e3.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e619\u003c\/td\u003e\n\u003ctd\u003eCenter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet Outside Diameter\u003c\/td\u003e\n\u003ctd\u003e3.12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e620\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e596\u003c\/td\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1174\u003c\/td\u003e\n\u003ctd\u003eAbsorption \/ Glasspack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e622\u003c\/td\u003e\n\u003ctd\u003e2.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e304\u003c\/td\u003e\n\u003ctd\u003eCenter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet Outside Diameter\u003c\/td\u003e\n\u003ctd\u003e3.12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e623\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e598\u003c\/td\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8971\u003c\/td\u003e\n\u003ctd\u003e24.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e624\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e33\u003c\/td\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound Level\u003c\/td\u003e\n\u003ctd\u003eAggressive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e626\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3145\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFlowtech Exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCategory\u003c\/td\u003e\n\u003ctd\u003eExhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmission Code\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMuffler Series\u003c\/td\u003e\n\u003ctd\u003ePurple Hornies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eStreet Mufflers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Type\u003c\/td\u003e\n\u003ctd\u003eClassic Muscle Car\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Type\u003c\/td\u003e\n\u003ctd\u003eStreet Rod\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle Type\u003c\/td\u003e\n\u003ctd\u003eTruck\/SUV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarning\u003c\/td\u003e\n\u003ctd\u003eCalifornia Proposition 65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9957\u003c\/td\u003e\n\u003ctd\u003eSlip-Fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e9958\u003c\/td\u003e\n\u003ctd\u003eSlip-Fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epart type\u003c\/td\u003e\n\u003ctd\u003eExhaust Muffler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSub Category\u003c\/td\u003e\n\u003ctd\u003eMufflers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11739\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11740\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_ABR\u003c\/td\u003e\n\u003ctd\u003eMUFF 3.00IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_SHO\u003c\/td\u003e\n\u003ctd\u003eMUFF PURPLE HORNIE 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_INV\u003c\/td\u003e\n\u003ctd\u003eMUFF - PURPLE HORNIE 3\"x 3 HOLE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_ASC\u003c\/td\u003e\n\u003ctd\u003eHeader Mount Muffler, Packaged as a Single Muffler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_DES\u003c\/td\u003e\n\u003ctd\u003eFlowtech Purple Hornies Glasspack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_EXT\u003c\/td\u003e\n\u003ctd\u003e3-Hole Header Muffler, 3\" Inlet, 2.250\" Outlet, Muffler Body Length 18\", Overall Length 24\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_MKT\u003c\/td\u003e\n\u003ctd\u003eThe classic Purple Hornie tubular design glasspack mufflers give sound and performance gains that are more than impressive - they're wild! The 16-gauge, 3.5\" diameter steel shell encloses an interior spiral louver baffle design that increases exhaust velocity while decreasing backpressure, projecting the sound waves into a temperature fibermat material. Available in an 18\" case length with 2.250\" slip-fit or choose from three different styles of 3\" three-hole direct-header-mount designs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eRich\/Powerful Sound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eDistinctive Purple Finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eSpiral Louver Design Core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eDecreases Backpressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eBoosts Horsepower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003e3.5 Diameter 16-Gauge Case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_ABR\u003c\/td\u003e\n\u003ctd\u003eMUFF 3.00IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_SHO\u003c\/td\u003e\n\u003ctd\u003eMUFF PURPLE HORNIE 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_INV\u003c\/td\u003e\n\u003ctd\u003eMUFF - PURPLE HORNIE 3\"x 3 HOLE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_ASC\u003c\/td\u003e\n\u003ctd\u003eHeader Mount Muffler, Packaged as a Single Muffler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_DES\u003c\/td\u003e\n\u003ctd\u003eFlowtech Purple Hornies Glasspack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_EXT\u003c\/td\u003e\n\u003ctd\u003e3-Hole Header Muffler, 3\" Inlet, 2.250\" Outlet, Muffler Body Length 18\", Overall Length 24\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_MKT\u003c\/td\u003e\n\u003ctd\u003eThe classic Purple Hornie tubular design glasspack mufflers give sound and performance gains that are more than impressive - they're wild! The 16-gauge, 3.5\" diameter steel shell encloses an interior spiral louver baffle design that increases exhaust velocity while decreasing backpressure, projecting the sound waves into a temperature fibermat material. Available in an 18\" case length with 2.250\" slip-fit or choose from three different styles of 3\" three-hole direct-header-mount designs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eRich\/Powerful Sound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eDistinctive Purple Finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eSpiral Louver Design Core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eDecreases Backpressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003eBoosts Horsepower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription_FAB\u003c\/td\u003e\n\u003ctd\u003e3.5 Diameter 16-Gauge Case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"FlowTech","offers":[{"title":"Default Title","offer_id":41306183303216,"sku":"CJWH_50230FLT","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/FLT50230.jpg?v=1712969384"},{"product_id":"allstar-performance-heated-tire-siper-all10266","title":"Allstar Performance Heated Tire Siper ALL10266","description":"Tire Siper - 13 Blade - Heated - 110V - Black \/ Silver - Each\u003cp\u003e\u003cbr\u003eAllstar Performance Heated Tire Siper ALL10266\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Allstar Performance","offers":[{"title":"Default Title","offer_id":41322595123248,"sku":"DNLF_ALL10266","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/ALL10266.jpg?v=1713036769"},{"product_id":"speed-engineering-ls-swap-longtube-headers-aje-k-member-mustang-1979-2004","title":"Speed Engineering 1-7\/8\" LS Swap Longtube Headers \u0026 AJE K-Member — 1979–1993 Fox Body \u0026 1994–2004 SN95 Ford Mustang | LS1\/LS2\/LS3\/LS6\/LSA | 25-1028 ETA 6\/30\/26","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003e\u003c\/strong\u003eSwapping a GM LS engine into your Fox Body or SN95 Mustang and want everything you need to do it right? This combo kit pairs Speed Engineering's 1-7\/8\" LS swap longtube headers with a complete AJE K-member package — giving you the headers, K-member, motor mounts, spring perches, and steering shaft all in one purchase. 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 merge spikes and 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 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\u003eGM LS engine swaps only\u003c\/strong\u003e — these headers are NOT designed for Ford engines of any kind\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eHeaders have only been tested successfully with AJE Motor Mounts, Flaming River Steering Shafts, and AJE K-Members\u003c\/strong\u003e — compatibility with other combinations is unknown and not guaranteed\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\u003eSpeed Engineering Headers — Kit 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\"\u003e1-7\/8\" Longtube Headers with Merge Spikes\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eStandard Graphite Manifold Gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eAJE Suspension — Kit 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\"\u003e1979–2004 AJE K-Member\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eLS Engine Motor Mounts\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979–2004 Spring Perches — Allows use of factory A-arms and springs\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1979–2004 Manual or Power Steering Shaft 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 leading-[1.7]\"\u003e\u003cstrong\u003eHeader Features:\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 with Merge 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 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 LS 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, 6.2L, LS1, LS2, LS3, LS6, and LSA Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 LS 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\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 All applications listed are GM LS engine swap conversions. These headers are not compatible with Ford engines of any kind.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFord Mustang — Fox Body (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\"\u003e1979 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1980 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1981 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1982 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1983 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1984 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1985 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1986 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1987 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1988 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1989 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1990 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1991 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1992 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1993 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eFord Mustang — SN95 (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\"\u003e1994 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1995 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1996 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1997 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1998 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1999 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2000 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2001 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2002 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2003 Ford Mustang (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e2004 Ford Mustang (RWD) — LS Swap\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 included in this kit?\u003c\/strong\u003e This kit includes Speed Engineering 1-7\/8\" LS swap longtube headers with merge spikes and graphite manifold gaskets, plus the AJE K-member, LS engine motor mounts, 1979–2004 spring perches, and a manual or power steering shaft kit.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will these headers work with my Ford engine?\u003c\/strong\u003e No. These headers are designed for GM LS engine swaps only and are not compatible with Ford engines of any kind.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What motor mounts and K-member are compatible with these headers?\u003c\/strong\u003e These headers have only been tested successfully with AJE Motor Mounts, Flaming River Steering Shafts, and AJE K-Members — all of which are included in this kit. Compatibility with other combinations is unknown and not guaranteed.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Will the AJE spring perches allow me to keep my factory A-arms and springs?\u003c\/strong\u003e Yes. The included 1979–2004 spring perches are designed to allow the use of factory A-arms and springs.\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 headers-only version?\u003c\/strong\u003e This listing is a complete combo kit that includes the AJE K-member, motor mounts, spring perches, and steering shaft kit in addition to the Speed Engineering headers. The headers-only listing includes just the headers and gaskets.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What LS 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, 6.2L, LS1, LS2, LS3, LS6, and LSA.\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\" LS swap longtube headers are dyno proven to add over 25 rear-wheel horsepower compared to stock exhaust manifolds on LS 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 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":41390100185136,"sku":"25-1028","price":999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_LS_Swap_Longtube_Headers_AJE_K-Member_FOX_BODY_1979_1993_sn95_1994_2004_Ford_Mustang_25-1028.png?v=1762274662"},{"product_id":"suspension-engineering-silverado-sierra-15-inch-conversion-brake-kit-1999-2018","title":"Suspension Engineering Silverado \u0026 Sierra 15\" Inch Conversion Brake Kit (1999-2018) 33-1112","description":"\u003cp data-mce-fragment=\"1\"\u003eSuspension Engineering chassis and suspension components are designed and tested to create a high strength, durable product, with great fitment. Our manufacturing process employ automated tubing benders, CNC machining, and laser cut components. We stand behind our products, and you will not find a better quality product at such an affordable price.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eFeatures include:\u003c\/span\u003e\u003c\/em\u003e\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\"\u003e1\/2\" Thick Aluminum Brake Brackets\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eOptional Solid or Drilled \u0026amp; Slotted Rotors\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eOptional OE Semi Metallic or Carbon Ceramic Brake Pads\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eOptional Cardone Calipers\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFactory drum brake trucks require new brake lines to be made. \u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cspan\u003e Does not allow the factory parking brake to be used. \u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Will not work with factory brake components.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e1999 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2000 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2001 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2002 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2003 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2004 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2005 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2006 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2007 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2008 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2009 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2010 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2011 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2012 Chevrolet Silverado\/GMC Sierra \u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2013 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2014 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2015 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2016 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2017 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2018 Chevrolet Silverado\/GMC Sierra\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFitment Note: \u003c\/strong\u003eCalipers might need slight modifications with certain 15\" wheel brands. \u003c\/p\u003e","brand":"Suspension Engineering","offers":[{"title":"Default Title","offer_id":41423470460976,"sku":"33-1112","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/33-1105Silverado_Sierra15InchCon.jpg?v=1714748640"},{"product_id":"suspension-engineering-silverado-sierra-engine-cross-bar-1999-2006-red-or-black-33-1143","title":"Suspension Engineering Silverado \u0026 Sierra Engine Cross Bar 1999-2006 2WD ONLY (Red or Black) 33-1143","description":"\u003cp\u003eSuspension Engineering chassis and suspension components are designed and tested to create a high strength, durable product, with great fitment. Our manufacturing process employ automated tubing benders, CNC machining, and laser cut components. We stand behind our products, and you will not find a better quality product at such an affordable price.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003e\u003cem\u003e\u003cu\u003eFeatures include:\u003c\/u\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eMild Steel Construction\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003eLightweight Design\u003c\/li\u003e\n\u003cli\u003eReplaces Factory Chassis Brace between Control Arms\u003c\/li\u003e\n\u003cli\u003eAdditional Clearance\u003c\/li\u003e\n\u003cli\u003eTubular Design\u003c\/li\u003e\n\u003cli\u003eIncludes Hardware \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cu\u003e\u003cem\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1999 Chevrolet Silverado\/GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Silverado\/GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Silverado\/GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Silverado\/GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e2003 Chevrolet Silverado\/GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e2004 Chevrolet Silverado\/GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e2005 Chevrolet Silverado\/GMC Sierra 1500\u003c\/li\u003e\n\u003cli\u003e2006 Chevrolet Silverado\/GMC Sierra 1500\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cspan\u003e 1999-2000 \u003c\/span\u003eWill only work on chassis with no upper support mount. Could work on other years but will eliminate the upper mount location. \u003c\/p\u003e","brand":"Suspension Engineering","offers":[{"title":"Red","offer_id":43249394319408,"sku":"33-1143","price":144.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43249394352176,"sku":"33-1143","price":144.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/33-1143InstallSuspensionEngineer.jpg?v=1714753627"},{"product_id":"suspension-engineering-tunnel-brace-2008-2017-camaro-pontiac-g8-chevy-ss-red-or-black-33-1099","title":"Suspension Engineering Tunnel Brace 2008-2017 Camaro\/Pontiac G8\/Chevy SS (Red or Black) 33-1099","description":"\u003cp data-mce-fragment=\"1\"\u003eSuspension Engineering chassis and suspension components are designed and tested to create a high strength, durable product, with great fitment. Our manufacturing process employ automated tubing benders, CNC machining, and laser cut components. We stand behind our products, and you will not find a better quality product at such an affordable price.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr 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\"\u003eHeavy Duty 1\/8\" Mild Steel Construction\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eMade in the USA\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eIncreased Clearance for Performance Exhaust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2010 Chevrolet Camaro\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2011 Chevrolet Camaro\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2012 Chevrolet Camaro\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2013 Chevrolet Camaro\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2014 Chevrolet Camaro\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2015 Chevrolet Camaro\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2008 Pontiac G8\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2009 Pontiac G8\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2014 Chevrolet Sedan SS\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2015 Chevrolet Sedan SS\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2016 Chevrolet Sedan SS\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e2017 Chevrolet Sedan SS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Suspension Engineering","offers":[{"title":"Red","offer_id":42559099797552,"sku":"33-1099-RD","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":42559099830320,"sku":"33-1099-BK","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/33-1099-RDPontiacG8CamaroSSTunne.jpg?v=1714759282"},{"product_id":"suspension-engineering-camaro-firebird-chassis-mounted-adjustable-torque-arm-1993-2002-red-or-black-33-1008","title":"Suspension Engineering Camaro \u0026 Firebird Chassis Mounted Adjustable Torque Arm 1993-2002 (Red or Black) 33-1008","description":"\u003cp\u003eSuspension Engineering chassis and suspension components are designed and tested to create a high strength, durable product, with great fitment. Our manufacturing process employ automated tubing benders, CNC machining, and laser cut components. We stand behind our products, and you will not find a better quality product at such an affordable price.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eHeavy Duty Mild Steel Construction\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e1.25\" x .120 Wall DOM\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003eCNC Machined\u003c\/li\u003e\n\u003cli\u003eHigh Strength Polyurethane Bushing\u003c\/li\u003e\n\u003cli\u003eOn Car Adjustable\u003c\/li\u003e\n\u003cli\u003eIncludes Driveshaft Safety Loop\u003c\/li\u003e\n\u003cli\u003eChassis Mounted Crossmember\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cu\u003e\u003cem\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1993 Chevrolet Camaro\/Pontiac Firebird\u003cbr\u003e1994 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1995 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Camaro\/Pontiac Firebird \u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNote: \u003c\/strong\u003eWill not work with Speed Engineering true dual axle dump system.\u003c\/span\u003e\u003c\/p\u003e","brand":"Suspension Engineering","offers":[{"title":"Red","offer_id":43255351181360,"sku":"33-1008-RD","price":249.99,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":43255351214128,"sku":"33-1008-BK","price":249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/speed_engineering_33-1008r-Suspe.jpg?v=1714760999"},{"product_id":"suspension-engineering-camaro-firebird-panhard-rod-relocation-kit-1982-2002-red-or-black-33-1001","title":"Suspension Engineering Camaro Firebird Panhard Rod Relocation Kit 1982-2002 (Red or Black) 33-1001","description":"\u003cp\u003eSuspension Engineering suspension and chassis components are designed and tested with the purpose of creating a great fitting, strong replacement product at an affordable price. A majority of our products were designed around our headers and exhaust systems, allowing the customer to save time, and money by offering compatible products rather than guessing one will work with another. We stand behind our products in saying you will not find a better fitting, quality built, budget part for your vehicle.\u003c\/p\u003e\n\u003cp\u003eSuspension Engineering Relocation Kit replaces the panhard rod support bar, and relocates the panhard rod. Which, will allow enough room for our 3\" true dual over the axle exhaust system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eHeavy Duty Mild Steel Construction\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e1.25\" x .120 Wall DOM\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003eNew Mounting Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cu\u003e\u003cem\u003eVehicle Applications:\u003c\/em\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1982 Chevrolet Camaro\/Pontiac Firebird\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1984 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1985 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1986 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1987 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1988 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1989 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1990 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1991 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1992 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1993 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1994 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1995 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Suspension Engineering","offers":[{"title":"Default Title","offer_id":41423832154160,"sku":"33-1001","price":104.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/SuspensionEngineering33-1001R-Su.jpg?v=1714761289"},{"product_id":"suspension-engineering-camaro-firebird-adjustable-panhard-rod-1982-2002-red-or-black-33-1005","title":"Suspension Engineering Camaro \u0026 Firebird Adjustable Panhard Rod 1982-2002 (Red or Black) 33-1005","description":"\u003cp\u003eSuspension Engineering chassis and suspension components are designed and tested to create a high strength, durable product, with great fitment. Our manufacturing process employ automated tubing benders, CNC machining, and laser cut components. We stand behind our products, and you will not find a better quality product at such an affordable price.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eHeavy Duty Mild Steel Construction\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e1.25\" x .120 Wall DOM\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003eGreaseable Zerk Fittings\u003c\/li\u003e\n\u003cli\u003eOn Car Adjustable\u003c\/li\u003e\n\u003cli\u003eHigh Strength Polyurethane Bushings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cu\u003e\u003cem\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1982 Chevrolet Camaro\/Pontiac Firebird\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1984 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1985 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1986 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1987 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1988 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1989 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1990 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1991 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1992 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1993 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1994 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1995 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Suspension Engineering","offers":[{"title":"Black","offer_id":42975629574192,"sku":"33-1005-BK","price":74.99,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":42975629606960,"sku":"33-1005-RD","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/speed_engineering_33-1005r-Suspe.jpg?v=1714761589"},{"product_id":"suspension-engineering-camaro-firebird-lower-control-arm-relocation-brackets-1982-02-red-or-black-33-1006","title":"Suspension Engineering Camaro \u0026 Firebird Lower Control Arm Relocation Brackets 1982-02 (Red or Black) 33-1006","description":"\u003cp\u003eSuspension Engineering chassis and suspension components are designed and tested to create a high strength, durable product, with great fitment. Our manufacturing process employ automated tubing benders, CNC machining, and laser cut components. We stand behind our products, and you will not find a better quality product at such an affordable price.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eHeavy Duty 3\/16\" Mild Steel Construction\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003eWorks with factory Suspension\u003c\/li\u003e\n\u003cli\u003eAdjustable Positioning\u003c\/li\u003e\n\u003cli\u003eCNC Laser Cut\u003c\/li\u003e\n\u003cli\u003eHigh Strength Polyurethane Bushings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cu\u003e\u003cem\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1982 Chevrolet Camaro\/Pontiac Firebird\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e1983 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1984 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1985 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1986 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1987 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1988 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1989 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1990 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1991 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1992 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1993 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1994 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1995 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Suspension Engineering","offers":[{"title":"Default Title","offer_id":41423862595632,"sku":"33-1006","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/speed_engineering_33-1006r-Suspe.jpg?v=1714762451"},{"product_id":"suspension-engineering-camaro-firebird-upper-a-arms-1993-2002-red-or-black-33-1012","title":"Suspension Engineering Camaro \u0026 Firebird Upper A-Arms 1993-2002 (Red or Black) 33-1012","description":"\u003cp\u003eSuspension Engineering chassis and suspension components are designed and tested to create a high strength, durable product, with great fitment. Our manufacturing process employ automated tubing benders, CNC machining, and laser cut components. We stand behind our products, and you will not find a better quality product at such an affordable price.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eFeatures include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eHeavy Duty Mild Steel Construction\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e1\" x .120 Wall\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003eGreaseable Zerk Fittings\u003c\/li\u003e\n\u003cli\u003eHigh Strength Polyurethane Bushings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cu\u003e\u003cem\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1993 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1994 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1995 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Suspension Engineering","offers":[{"title":"Black","offer_id":42834366988336,"sku":"33-1012-BK","price":174.99,"currency_code":"USD","in_stock":true},{"title":"Red","offer_id":42834367021104,"sku":"33-1012-RD","price":174.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/speed_engineering_33-1012r-Suspe.jpg?v=1714762709"},{"product_id":"suspension-engineering-camaro-firebird-strut-shock-tower-brace-1993-2002-red-or-black-33-1010","title":"Suspension Engineering Camaro Firebird Strut Shock Tower Brace 1993-2002 (Red or Black) 33-1010","description":"\u003cp\u003eSuspension Engineering chassis and suspension components are designed and tested to create a high strength, durable product, with great fitment. Our manufacturing process employ automated tubing benders, CNC machining, and laser cut components. We stand behind our products, and you will not find a better quality product at such an affordable price.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDoes not work on V6 applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eHeavy Duty Mild Steel Construction\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e1.25\" x .120 Wall\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cu\u003e\u003cem\u003eVehicle Applications:\u003c\/em\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1993 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1994 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1995 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Camaro\/Pontiac Firebird\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Suspension Engineering","offers":[{"title":"Default Title","offer_id":41423876489264,"sku":"33-1010","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/speed_engineering_33-1010r-Suspe.jpg?v=1714762852"},{"product_id":"suspension-engineering-camaro-firebird-weld-in-subframe-connectors-1993-2002-red-or-black-33-1009","title":"Suspension Engineering Camaro \u0026 Firebird Weld in Subframe Connectors 1993-2002 (Red or Black) 33-1009","description":"\u003cp\u003eSuspension Engineering suspension and chassis components are designed and tested with the purpose of creating a great fitting, strong replacement product at an affordable price. A majority of our products were designed around our headers and exhaust systems, allowing the customer to save time, and money by offering compatible products rather than guessing one will work with another. We stand behind our products in saying you will not find a better fitting, quality built, budget part for your vehicle.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eMade in the USA\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eHeavy Duty Mild Steel Construction\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003e2\" x 2\" x .120 Wall\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eSquare Tubing\u003c\/li\u003e\n\u003cli\u003eCNC Machined\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eNote\u003c\/em\u003e\u003c\/strong\u003e: Will not work on Convertibles.\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cem\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1993 Chevrolet Camaro\/Pontiac Firebird (Hardtop Only)\u003c\/li\u003e\n\u003cli\u003e1994 Chevrolet Camaro\/Pontiac Firebird (Hardtop Only)\u003c\/li\u003e\n\u003cli\u003e1995 Chevrolet Camaro\/Pontiac Firebird (Hardtop Only)\u003c\/li\u003e\n\u003cli\u003e1996 Chevrolet Camaro\/Pontiac Firebird (Hardtop Only)\u003c\/li\u003e\n\u003cli\u003e1997 Chevrolet Camaro\/Pontiac Firebird (Hardtop Only)\u003c\/li\u003e\n\u003cli\u003e1998 Chevrolet Camaro\/Pontiac Firebird (Hardtop Only)\u003c\/li\u003e\n\u003cli\u003e1999 Chevrolet Camaro\/Pontiac Firebird (Hardtop Only)\u003c\/li\u003e\n\u003cli\u003e2000 Chevrolet Camaro\/Pontiac Firebird (Hardtop Only)\u003c\/li\u003e\n\u003cli\u003e2001 Chevrolet Camaro\/Pontiac Firebird (Hardtop Only)\u003c\/li\u003e\n\u003cli\u003e2002 Chevrolet Camaro\/Pontiac Firebird (Hardtop Only)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Suspension Engineering","offers":[{"title":"Default Title","offer_id":41423880945712,"sku":"33-1009","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/speed_engineering_33-1009b-Suspe.jpg?v=1714763153"},{"product_id":"speed-engineering-spark-plug-wires-car-truck-suv-12-length-black-26-1067-copy","title":"Speed Engineering Spark Plug Wires Car, Truck, \u0026 SUV 10\" Length \"RED\" 26-1001","description":"\u003cp data-mce-fragment=\"1\"\u003eSpeed Engineering 45 degree angled spark plug wires. We offer our own line of quality spark plug wires produced here in the U.S. These angled plug wires work great with all of our standard and swap headers. We have used several spark plug wires over the years, and are happy to say these are one of the best fitting wires, with the most clearance you will find on the market.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eNote:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThroughout the years GM Trucks \u0026amp; SUV's have used different part number coils and locations. Some require a longer 12\" wire, and some use our shorter 10\" wire. Please verify which wire you have prior to ordering.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cstrong\u003eFeatures include:\u003c\/strong\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\"Made in the USA\"\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e45 Degree Angled Spark Plug Boots\u003c\/li\u003e\n\u003cli\u003eHigh Temp Heat Resistant\u003c\/li\u003e\n\u003cli\u003eLarge 8.2MM 40-OHM Wires\u003c\/li\u003e\n\u003cli\u003e8 Piece Set\u003c\/li\u003e\n\u003cli\u003e4.8L, 5.3L, 5.7L, 6.0L, 6.2L Engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":41480594522160,"sku":"26-1001","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/26-1001LSLTSparkPlugWiresCar_Tru.jpg?v=1716901255"},{"product_id":"texas-speed-chopacabra-truck-cam-tsp-chopacabra","title":"Texas Speed TSP \"Chopacabra\" Truck Cam TSP-CHOPacabra","description":"\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eTSP \"CHOPacabra\" Truck Cam Specs:\u003c\/strong\u003e 214\/222 .550\/.550 108 LSA 106 ICL\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eIntroducing the CHOPacabra cam! This is a nasty little beast of cam. Designed to work with LS6 valve springs and a factory torque converter. If you're looking for that mean, snarling sound and performance that will leave your opponent second guessing what he just saw...this is it!\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eEngines best suited for:\u003c\/strong\u003e 4.8, 5.3, 5.7, 6.0 (Equipped with cathedral port heads)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eDesired Compression ratio for cam\u003c\/strong\u003e: 9.5:1+\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eRecommended Springs Required\u003c\/strong\u003e: GM LS6 Beehive Valve Springs\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eAftermarket Stall Converter Required\u003c\/strong\u003e: No. Factory converter friendly!\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eUpgraded Rear Gear Required:\u003c\/strong\u003e No\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eOperating RPM Range\u003c\/strong\u003e: 1200-6500\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cspan\u003e\u003cstrong\u003ePower Increase\u003c\/strong\u003e: Under testing it gained 67hp and 26ft lbs of torque at the crank\u003c\/span\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eDrivability:\u003c\/strong\u003e Great driveability with an amazing chop!\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eDyno Test Motor Specs:\u003c\/strong\u003e Stock Gen IV 5.3, Stock 862 heads with GM LS6 Valve Springs, TBSS intake manifold.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/vS8zoaQnCHY\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"Texas Speed \u0026 Performance","offers":[{"title":"Default Title","offer_id":41480693579824,"sku":"TSP-CHOPacabra","price":409.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Untitleddesign_45.png?v=1732230206"},{"product_id":"raxiom-15-22-ford-mustang-axial-series-led-side-marker-lights-rear-smoked-1","title":"Raxiom 15-22 Ford Mustang Axial Series LED Side Marker Lights Rear (Smoked)","description":"\u003cp\u003eA pair of Axial Smoked LED Side Marker Lights will upgrade the exterior styling of your 2015-2023 S550 Mustang. These Side Marker Lights feature a razor sharp LED strip that replaces the unsightly hot spot of the factory lights. Axial Side Marker Lights not only look great, but they are also much brighter than the weak factory incandescent lights for increased visibility day or night. Raxiom manufactures their Rear Side Marker Lights with injected molded ABS plastic housings for durability, and smoked lenses for intimidating good looks. These Side Marker employee high output, red, LED strip lighting for super bright illumination. Raxiom ensures that their Side Marker Light housings are weather sealed to prevent dirt and moisture from harming the state of the art electronics found inside. Raxiom designed their LED Side Marker Lights to be a direct plug and play upgrade for your Mustang's original factory lights. There is absolutely no cutting, splicing or resistors required. Just pop out the old factory side markers and disconnect the wiring harness. Plug the harness into the back of your new LED Side Markers and snap them in place of the old ones. It's that simple!\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDriver and Passenger Rear Side Markers Included\u003c\/li\u003e\n\u003cli\u003eDurable ABS Plastic Housings\u003c\/li\u003e\n\u003cli\u003eLighting Appearance Upgrade\u003c\/li\u003e\n\u003cli\u003ePlug and Play Installation\u003c\/li\u003e\n\u003cli\u003eSuper Bright LED Strip\u003c\/li\u003e\n\u003cli\u003eSmoked Lenses\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis Part Fits:\u003c\/p\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003cth align=\"left\" width=\"100\"\u003eYear\u003c\/th\u003e\n\u003cth align=\"left\" width=\"125\"\u003eMake\u003c\/th\u003e\n\u003cth align=\"left\" width=\"150\"\u003eModel\u003c\/th\u003e\n\u003cth align=\"left\" width=\"80\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2020\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eBullitt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2023\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eEcoBoost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2023\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eEcoBoost Premium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2023\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT 50 Years Limited Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2023\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eGT Premium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eMach 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eShelby GT350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eShelby GT350R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2022\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eShelby GT500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2017\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eMustang\u003c\/td\u003e\n\u003ctd\u003eV6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Raxiom","offers":[{"title":"Default Title","offer_id":41640988147760,"sku":"RAX404231","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/922b738ee27ae900dbd1436687da4d5d.jpg?v=1725744242"},{"product_id":"speed-engineering-ls-swap-1-7-8-longtube-headers-1982-1988-g-body-ls1-lsa","title":"Speed Engineering 1-7\/8\" LS Swap Longtube Headers — 1982–1988 GM G-Body | LS1\/LS2\/LS3\/LS6\/LSA | 25-1137","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eDropping an LS engine into your G-body? Speed Engineering's 1-7\/8\" LS swap longtube headers are engineered specifically for great fitment on the G-body platform — mandrel bent, TIG-welded, and CNC-machined for a precise fit on Monte Carlo, El Camino, Grand Prix, Cutlass, and Regal LS swap builds. Compatible with the full LS engine family from 4.8L through 6.2L including LS1, LS2, LS3, LS6, and LSA. Dyno proven and built from 304 natural stainless steel with merge spikes and 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 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\u003eLS swap applications only\u003c\/strong\u003e — these headers are NOT compatible with standard SBC or BBC engines\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eDue to older vehicle frame clearance, headers fit very tight and require Speed Engineering spark plug wires\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e4L80E or older Turbo 350\/400 transmission\u003c\/strong\u003e — bellhousing ears may need to be trimmed for proper 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\u003e1-7\/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 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\u003eEngineered for Great Fitment on the G-Body Platform\u003c\/strong\u003e\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\u003eDyno Proven\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, 6.2L, LS1, LS2, LS3, LS6, and LSA Engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eV8 LS 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\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 All applications listed are LS swap conversions. These headers are not compatible with the original factory engines in these vehicles.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet Monte Carlo — G-Body (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\"\u003e1982 Chevrolet Monte Carlo (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1983 Chevrolet Monte Carlo (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1984 Chevrolet Monte Carlo (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1985 Chevrolet Monte Carlo (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1986 Chevrolet Monte Carlo (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1987 Chevrolet Monte Carlo (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1988 Chevrolet Monte Carlo (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eChevrolet El Camino — G-Body (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\"\u003e1982 Chevrolet El Camino (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1983 Chevrolet El Camino (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1984 Chevrolet El Camino (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1985 Chevrolet El Camino (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1986 Chevrolet El Camino (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1987 Chevrolet El Camino (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePontiac Grand Prix — G-Body (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\"\u003e1982 Pontiac Grand Prix (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1983 Pontiac Grand Prix (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1984 Pontiac Grand Prix (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1985 Pontiac Grand Prix (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1986 Pontiac Grand Prix (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1987 Pontiac Grand Prix (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eOldsmobile Cutlass — G-Body (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\"\u003e1982 Oldsmobile Cutlass (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1983 Oldsmobile Cutlass (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1984 Oldsmobile Cutlass (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1985 Oldsmobile Cutlass (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1986 Oldsmobile Cutlass (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1987 Oldsmobile Cutlass (RWD) — LS Swap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eBuick Regal — G-Body (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\"\u003e1982 Buick Regal (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1983 Buick Regal (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1984 Buick Regal (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1985 Buick Regal (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1986 Buick Regal (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1987 Buick Regal (RWD) — LS Swap\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e1988 Buick Regal (RWD) — LS Swap\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 work with my SBC or BBC engine?\u003c\/strong\u003e No. These headers are designed for LS series engine swaps only and are not compatible with standard small block Chevy or big block Chevy engines.\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 LT swap G-body headers?\u003c\/strong\u003e The key difference is the engine family. These headers are designed for GM LS engine swaps including LS1, LS2, LS3, LS6, and LSA. The LT swap G-body headers (25-1165) are designed for Gen V LT direct injection engine swaps including LT1 and LT4. Make sure you select the correct headers for your specific engine swap.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: Do I need special spark plug wires?\u003c\/strong\u003e Yes. Due to tight frame clearance on older G-body platforms, Speed Engineering spark plug wires are required for proper fitment with these headers.\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 or older Turbo 350\/400 transmission?\u003c\/strong\u003e These headers may require trimming of the bellhousing ears on 4L80E or older Turbo 350\/400 transmissions for proper clearance.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What LS 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, 6.2L, LS1, LS2, LS3, LS6, and LSA.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eQ: What G-body vehicles do these headers fit?\u003c\/strong\u003e These headers fit 1982–1988 Chevrolet Monte Carlo, 1982–1987 Chevrolet El Camino, 1982–1987 Pontiac Grand Prix, 1982–1987 Oldsmobile Cutlass, and 1982–1988 Buick Regal.\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-[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":41650417762352,"sku":"25-1137","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/Speed_Engineering_LS_Swap_1-7_8_Longtube_Headers_1982_1988_G_Body_LS1_LS2_LS3_LS6_LSA_25-1137.jpg?v=1762274961"}],"url":"https:\/\/berryperformancesales.com\/collections\/best-selling.oembed","provider":"Berry Performance Sales","version":"1.0","type":"link"}