This American Thunder exhaust system has been engineered and dyno tested to improve acceleration, horsepower and torque, and increase fuel economy. Flowmaster uses mandrel-bent tubing that allows for superior gas flow. Aluminized steel provides corrosion resistant quality so your
system will last. The American Thunder system comes with a two chamber
muffler that will give you an aggressive sound. Everything you need for
installation is included.
Super 40 Series Muffler
DOS & DOR - Pipes included for either side or rear exit locations.
Part Number 17428 Fits:
1999 - 2006 Chevrolet/GMC Truck CK1500 Extended Cab / Short Bed 143.5", 4.8L / 5.3L with Single Flanged Cat, 2 & 4 Wheel Drive, 1/2 Ton