TL;DR: SPELAB Exhaust Header for 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 Chevy/GMC C1500 Pickup 305 5.0L/350 5.7L Replacing or upgrading your exhaust header is necessary for both engine performance and sound. Whether on or off the track, exhaust headers provide more horsepower and improv…
