The 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.
Built from 304 natural stainless steel with mandrel-bent primary tubes, CNC-machined flanges, merge spikes, and full TIG-welded construction.
Features:
- Full 1-3/4" Primary Tubes with Merge Spikes — Full-diameter flow from cylinder head to collector for maximum exhaust scavenging
- 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 5.7L LS1 applications
- Compatible with 5.7L LS1 Engines
Vehicle Applications:
Chevrolet Camaro — SS & Z28 (RWD)
- 1998 Chevrolet Camaro SS/Z28 (RWD) — 5.7L LS1
- 1999 Chevrolet Camaro SS/Z28 (RWD) — 5.7L LS1
- 2000 Chevrolet Camaro SS/Z28 (RWD) — 5.7L LS1
- 2001 Chevrolet Camaro SS/Z28 (RWD) — 5.7L LS1
- 2002 Chevrolet Camaro SS/Z28 (RWD) — 5.7L LS1
Pontiac Firebird — Formula & Trans Am (RWD)
- 1998 Pontiac Firebird Formula/Trans Am (RWD) — 5.7L LS1
- 1999 Pontiac Firebird Formula/Trans Am (RWD) — 5.7L LS1
- 2000 Pontiac Firebird Formula/Trans Am (RWD) — 5.7L LS1
- 2001 Pontiac Firebird Formula/Trans Am (RWD) — 5.7L LS1
- 2002 Pontiac Firebird Formula/Trans Am (RWD) — 5.7L LS1
Note: These headers will also work on 1993–1997 Camaro and Firebird applications with an LS swap conversion.
FAQ
How much horsepower do these headers add to a 4th Gen Camaro or Firebird?
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.
What is the difference between the 1-3/4" and 1-7/8" headers for the 4th Gen Camaro and Firebird?
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.
Will these headers work on a 1993–1997 Camaro or Firebird?
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.
What engines are these headers compatible with?
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.
What material are these headers made from?
304 natural stainless steel with full TIG-welded construction, CNC-machined flanges, and merge spikes.
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).
