Hooker Maximum Flow Muffler 21605HKR short-bed This is also evident during

This is also evident during kickdown passing from 2nd to 3rd gear or whenaccelerating part throttle on to a freeway on ramp

Sound Absorption Chamber eliminates High Frequeny Sound Waves for Deep Throaty Powerful Sound

2005-2006 GMC Sierra 1500 325 CID

The new Flowmaster American Thunder® Cat-back exhaust system for 2011-2019 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with 6

Multiple Tailpipe Exits Provided in Kit

Hooker Maximum Flow Muffler 21605HKR short-bed This is also evident duringOverview The Hooker Maximum Flow muffler actually flows 99% and produces more horsepower and torque than a 2 1 2" open pipe. The Maximum Flow is constructed of an aluminized steel case with stainless steel internal core and uses a high temperature packing material to absorb excessive noise while allowing a mellow powerful sound. As with all absorption type silencers, the Maximum Flow will be most effective for sound control with lower compression (8.