The 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.
Note: These headers also work on 1993–1997 Camaro and Firebird applications equipped with an LS swap conversion.
Features:
- Full 1-7/8" Primary Tubes with Merge Spikes — Maximum flow from cylinder head to collector for aggressive LS1 performance
- 3" Collector — Optimized for strong low-to-mid RPM torque
- Mandrel Bent Tubing — Consistent tube diameter through every bend; no crimping, no restriction
- CNC Machined Flanges — Precision fit at the head and collector for a leak-free seal
- 304 Natural Stainless Steel Construction — Corrosion resistant, heat tolerant, and built to last
- Longtube Header Design — Maximum scavenging efficiency vs. shorty or mid-length headers
- Dyno Proven — 25+ RWHP gain on LS1 applications
- Compatible with 5.7L LS1 Engines
Vehicle Applications:
Chevrolet Camaro — LS1 5.7L (4th Gen F-Body)
- 1998 Chevrolet Camaro — 5.7L LS1
- 1999 Chevrolet Camaro — 5.7L LS1
- 2000 Chevrolet Camaro — 5.7L LS1
- 2001 Chevrolet Camaro — 5.7L LS1
- 2002 Chevrolet Camaro — 5.7L LS1
Pontiac Firebird & Trans Am — LS1 5.7L (4th Gen F-Body)
- 1998 Pontiac Firebird/Trans Am — 5.7L LS1
- 1999 Pontiac Firebird/Trans Am — 5.7L LS1
- 2000 Pontiac Firebird/Trans Am — 5.7L LS1
- 2001 Pontiac Firebird/Trans Am — 5.7L LS1
- 2002 Pontiac Firebird/Trans Am — 5.7L LS1
Note: Also fits 1993–1997 Camaro and Firebird applications with an LS swap conversion.
Frequently Asked Questions:
Q: What is the difference between these headers and the 1-3/4" full kit (25-1010)? 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.
Q: Will these headers work on a 1993–1997 3rd Gen Camaro or Firebird? 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.
Q: How much horsepower do these headers add? 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.
Q: What material are these headers made from? 304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.
Q: Are these headers street legal? 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)).
⚠️ Race Use Only: 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).