Flowmaster Cat-Back Exhaust 2004 GTO 17404

Flowmaster Cat-Back Exhaust 2004 GTO 17404

Item Code: GT5020

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This product has been discontinued and is not available to order.


Product Description

This Flowmaster 17404 American Thunder Cat-Back Exhaust for the 2004 Pontiac GTO 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.


  • 2.50" Outlets
  • Super 40 Series Mufflers
  • Scavenger Crossover Assembly ("X-Pipe" Style)
  • 3.00" Logo Embossed Stainless Steel Tips

Installation Difficulty

Installation Difficulty 3


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