Hooker Aero Chamber Muffler 21501HKR crew-cab 5-inch wb) GM Silverado/Sierra 4

5-inch wb) GM Silverado/Sierra 4

Complete Brake Ling & Hose Kit

5 Year/50000 Mile Case Warranty

Muffler Series: 40 Series Delta Flow

includes a built-in H-pipe/balance tube flowing into a pair of Super 44® mufflers that deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard

Hooker Aero Chamber Muffler 21501HKR crew-cab 5-inch wb) GM Silverado/Sierra 4Overview 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