Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Stainless Wheel and Tire Accessories>Wheel Accessories A clear sight window allows

A clear sight window allows for hassle-free filter inspection

with the ability to go from super soft to a stiff performance setup

Another huge benefit with our aluminum tanks is the tremendous weight savings you will see over a standard steel tank

diaphragm spring

The transmission must be removed to install

Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Stainless Wheel and Tire Accessories>Wheel Accessories A clear sight window allowsEvery Gibson Performance Header is Dyno tuned and engineered to deliver more usable horsepower and torque at low and mid range RPM highway speeds. Improves engines ability to breathe and cooler operating engine temperature. Designed as a direct replacement for the factory manifolds, using the stock crossover pipe. They are well suited for lowered and raised vehicles, street and off road. 50 State Street legal. Meets EPA and CARB requirements. Will not