Mainfold Exhaust Header for Chevy Camaro Pontiac Firebird (1993-1997) 5.7L EngineUnlocking the LT1: High Flow Performance Headers for 1993 1997 F Body Camaro & Firebird Who Its For: Engineered for 1993 1997 Chevrolet Camaro and Pontiac Firebird owners running the legendary 5. 7L LT1 powerplant who are tired of the stock manifolds restrictive breathing and excessive weight. The Symptom: The factory exhaust setup on the LT1 engine is a major bottleneck for the 4th Generation F Body. Cast iron manifolds are designed for mass