American Thunder is the most popular of the Flowmaster exhaust systems, tuned for maximum performance and manufactured to exceed your expectations, enhancing power, torque, throttle response and offering some sweet exhaust notes. This is a fully custom chambered system, crafted from durable 409 stainless steel with 3.5" to 2.5" mandrel-bent tubing, ensuring long-lasting durability and a corrosion-resistant finish.



The American Thunder System includes a 50 Series Big Block muffler, which provides a moderate, quieter tone that is gentler on the ears while cruising or accelerating, rather than an extreme 'mild to wild' sound range. Thanks to well-thought-out chambered muffler technology, the system eliminates excessive cabin drone.

Flowmaster® - American Thunder™ 409 SS Cat-Back Exhaust System with Split Rear/Side Exit





Notes:

The system comes with 50 Series Big Block muffler;
Remember to check your local or state laws regarding vehicle noise restrictions and Emission Standards;

It features a convenient bolt-on design, allowing installation with simple hand tools while reusing all factory mounting locations and hangers. Be sure to check your local and state laws regarding vehicle noise restrictions and emission standards before ordering and installing your new system. Flowmaster technicians carefully select the right muffler, tubing size, resonator, and tip to simplify the process for you.

Make a bold statement on the road with the American Thunder Cat-Back Exhaust by Flowmaster

Would you prefer a moderate, refined tone or something more aggressive?

Let us know what kind of exhaust experience you're after!

Read more about the manufacturer and explore the complete range of performance-oriented Flowmaster products at CARiD: https://www.carid.com/flowmaster/

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