Hooker Aero Chamber Muffler 21504HKR hooker-headers Max increases of up to

Max increases of up to 18 hp and 18 lb-ft over the stock exhaust at the rear wheels

The exhaust system is covered by our Lifetime Limited Warranty and includes all necessary parts and hardware for a quick and easy installation you can do at home

CARB Executive Order Number: Not Applicable

2022-2022 GMC Sierra 1500 Limited 325 CID

Hooker Aero Chamber Muffler 21504HKR hooker-headers Max increases of up toOverview The raw aluminized steel Aero Chamber is designed to do much more than simply muffle exhaust noise. The Aero Chamber Muffler produces a deep throaty powerful sound that will not change with time. The Hooker Aero Chamber uses a unique step principal, similar to that which is currently popular in racing header design. The aerodynamically designed chambers flow 23% better and produce more horsepower and torque than the most popular high