Experience the Iconic Flowmaster Sound with American Thunder

Experience the iconic Flowmaster sound with the American Thunder; the original that started it all. These systems are renowned for their very aggressive sound level; and they achieve this through the use of chambered mufflers; resulting in the performance gains and aggressive tone that car and truck enthusiasts crave; both inside and outside the vehicle. American Thunder systems are available in your choice of stainless steel for longevity or economical aluminized steel.


Boost Power and Torque with Classic Chambered Exhaust

The Flowmaster American Thunder Series boasts the classic sound of Flowmaster's chambered exhaust; offering mufflers fine-tuned to boost power; torque; throttle response; and mileage. These exhaust systems have the ability to transform even the most mild-mannered vehicles into machines that emit a deep and aggressive tone that's sure to turn heads.


Flowmaster American Thunder: The Perfect Blend of Sound and Performance

The Flowmaster American Thunder is your ticket to a powerful and aggressive exhaust tone. It's the go-to choice for those who want their vehicle to make a bold statement; both in terms of sound and performance. Whether you opt for stainless steel or aluminized steel; you're sure to enjoy the distinctive and aggressive Flowmaster experience.


Flowmaster Exhaust Systems: Aggressive Sound and Performance-Driven Design

Product Description

The American Thunder(R) cat-back exhaust system and factory dual tailpipes is perfect for the person looking for a deep powerful exterior sound with all of the performance benefits that you would expect from Flowmaster(R). This bolt-on emissions legal system features all mandrel-bent stainless steel tubing leading into a 50 Series� HD muffler to deliver maximum power and exterior sound quality; but with a moderately pleasant interior tone at cruising speeds. Other features include dual 3 Inch tailpipes that clear the factory spare tire and are finished with large 4 Inch black ceramic coated exhaust tips filling out the factory cutouts in the rear bumper. The system utilizes the factory hangers; features all necessary parts; hardware and instructions for an easy installation you can do at home.


Features & Benefits

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