- Available sound levels: Mild-Moderate Sound / Moderate Sound / Aggressive Sound / Moderate-Aggressive Sound / Mild Sound (depends on application and exhaust type)
- Increases Power
- Increases Torque
- Every System Tuned on Dynamometer
- Perfect Fitment
American Thunder gives you exactly the sound that is promised by the name of the series. The exhaust sound of the American Thunder system has become a symbol of American power that is recognized all over the world. American Thunder is the most popular of the Flowmaster exhaust systems, enhancing power, torque, throttle response and mileage for automobile enthusiasts all over the world.
All Flowmaster exhaust systems give the same improvement of performance. All Flowmaster exhaust systems produce a beautiful deep performance tone. Choosing between the five different exhaust systems is not a technical decision – it is all up to your personal taste. It’s A Sound Decision™. The racing origin is evident in every Flowmaster exhaust system. All the five series of systems are tuned for maximum performance. They differ in technology and tuning, and thus in tone and character, giving you a performance engine sound to your personal liking.
Flowmaster exhaust systems employ two unique technologies, the patented Delta Flow and the Laminar Flow. They give different characters of sound and can be tuned to achieve the desired exhaust note. Flowmaster Exhaust System Technology is so versatile and gives such a high degree of control that it is used both by racers, who want maximum power, and by the U.S. Air Force in Stealth applications, where maximum silence and minimum heat emissions are prime considerations.
Be it for a domestic or import truck, SUV, off-road warrior, daily driver, muscle car, euro-spec cruiser or sport compact vehicle, Flowmaster technicians personally hand select the right muffler, tubing size, resonator, and tip to make the process easy for you. Best of all, Flowmaster stainless steel exhaust systems are covered by a Limited Lifetime Warranty; ensuring that your exhaust will last as long as you own your vehicle. If you choose aluminized steel products, Flowmaster backs them up with a 3-year warranty.229.99 999.00
Flowmaster® has its roots in solving the engine noise problems encountered by California racers in the 1980s. In 1983 Flowmaster’s founder, Ray Flugger, created his first patented design of racing silencers, which dampened noise with minimal loss of power. Ray attached handles to ease carrying the square shaped race mufflers through the race pits, and the mufflers became known as the "suitcase mufflers." Today, the innovative Flowmaster mufflers are the result of years of development with top race engine builders, thousands of hours of dyno research and "real-world" on-track testing.Product Reviews (49)
Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.Flowmaster® - American Thunder™ Exhaust SystemAverage Rating: 4.6 of 5APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYShow Next 10 Shop Now(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2007 Dodge Charger
| Posted by Charles | (Blacksburg, VA)
My car before was decent had a nice stock V8 rumble to it but once I have these installed I feel like I'm driving a beast! I get so many head turns and looks and the look of the pipes coming out of the back is awesome! If you want a great growl out of your car this exhaust system is the way to go!Was this review helpful for you? YesNoShare this review:(4.8)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2013 Scion FR-S
| Posted by Eric | (Hayden, AL)
Nice deep, loud roar when she's on the hunt. Nice quiet purr when she's resting at idle. Easy enough install, great power gains when matched with my cold air intake! Not your typical import sound! I love the fact that the tips aren't too flashy, because while she is loud, she doesn't scream "overcompensation package". Just make sure you torque down the clamps tight enough or she'll shake herself loose.Was this review helpful for you? YesNoShare this review:(2)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY1997 Honda Del Sol
| Posted by Eric | (Hyattsville, MD)
This did not fit the Honda Del Sol listed! It was way too long for the car so we had to cut and weld part of the piping. Even then the canister had no more room to slide back and it was still poking out from behind the car. The hole tip was sitting way behind the rear bumper. Even if we could have got the tip to sit flush it would have still come into constant with the bumper. Horrible, we had to use the exhaust system without the tip and cut and weld in order to make it work!Was this review helpful for you? YesNoShare this review:(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYNice!2003 Dodge Ram
| Posted by Tarndeep | (Whiteland, IN)
Looks and sounds good, not as loud as I expected but still worth the price!Was this review helpful for you? YesNoShare this review:(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2014 Chevy Camaro
| Posted by David | (Buckeye, AZ)
Easy Installation and great sound.Was this review helpful for you? YesNoShare this review:(4.3)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYNew Exhaust System for 1971 Doge Charger1971 Dodge Charger
| Posted by Michael | (Massillon, OH)
The product installed very easily and impressed with the overall product.Was this review helpful for you? YesNoShare this review:(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2014 Ford Mustang
| Posted by Cherie | (Galliano, LA)
The exhaust we ordered were the wrong size, which we did not realize until we came to install them. I contacted CARiD and was helped to have them returned with no cost and easy shipping method. Had they been the correct size, they would have been very easy to install on my own.Was this review helpful for you? YesNoShare this review:(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYFlowmaster American Thunder2010 Ford F-150
| Posted by Christopher | (Fremont, NE)
I purchased this exhaust system about two months ago and I have been extremely pleased ever since. The throttle response and torque have been both improved. I'm not sure about the fuel mileage due to the fact that I can't seem to stay out of throttle because the American Thunder just sounds awesome. The system fits perfectly. And the installation went absolutely beautifully. All the stock hangers line up perfectly with the Flowmaster ones. The instructions were spot on, right down to the exact number of inches to cut off one of the tubes to make it fit. If you're not a fan of a strong exhaust note, then this is not for you. Since it is a little loud in the cab during city driving. However that noise is subdued at highway speeds when the overdrive kicks in. I would highly recommend this to anyone who wants their truck to sound strong as hell, but not to those who want a more timid exhaust note.1 people found this review helpful.Was this review helpful for you? YesNoShare this review:(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2013 Chevy Camaro
| Posted by Ronald | (Saint Charles, MO)
I wanted to make my 2013 Camaro sound a little meaner than the factory exhaust, but knew nothing about exhaust systems. My other concern was that I have a V6 instead of a 8 cyl. and wasn't sure if there would be much improvement. Rob from CARiD was very helpful and knowledgeable about all of the exhaust systems, and he recommended the Flowmaster American Thunder model. Well, he was right on. I can't be more satisfied with this exhaust system. I had my local muffler shop install it in about an hour, and it sounds great. The more I drive the car, the more I want to drive it. Thanks, Rob, for your help, and I will continue to buy products from CARiD. Ron South4 people found this review helpful.Was this review helpful for you? YesNoShare this review:(4.3)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY2011 Ford F-150
| Posted by Cory | (Fairbanks, AK)
Exhaust system sounds great and seemed like it opened up some low end torque. I would recommend this product to others. I installed mine on a 2011 F150 5.0 in about 1 1/2hrs. Very easy!6 people found this review helpful.Was this review helpful for you? YesNoShare this review:
Product Reviews (49)
Product Reviews (49)
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