Flowmaster 2004 GTO American Thunder Exhaust System.
Hear the aggressive sound of American Thunder.
Features:
2.50 Outlets
Super 40 Series Mufflers
Scavenger Crossover Assy. (X-Pipe Style)
3.00 Logo Embossed Stainless Tips
American Thunder
DOR (exits same side)
This American Thunder exhaust system has been individually engineered and dyno tested with the latest in technology. Through this technology you will experience improvements in acceleration, passing power, as well as an increase in fuel mileage. The key to the system’s performance improvements is through the use of mandrel-bent tubing that allows for superior exhaust gas flow. Aluminized steel tubing has been used for its corrosion resistant quality so your system will last. The American Thunder system comes with a two chamber muffler that will give you plenty of aggressive Flowmaster sound. All pipes with hangers, clamps, and mounting hardware have been included for easy installation.
\ 
