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The Flowmaster Sound is the true tone of American muscle and performance. Available in a wide range of domestic and import applications for automobiles and trucks. Flowmaster mufflers produce more power than OEM and competitive aftermarket products.
The American Thunder exhaust system is the loudest in the Flowmaster Exhaust System Line-up. 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, and 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 resistance so your system will last. The American Thunder system comes with a two-chamber muffler that will give you plenty of aggressive Flowmaster sound outside the vehicle as well as inside it. Every kit comes complete with all necessary hangers, clamps, and mounting hardware for an easy installation.
The Force II exhaust system is not as loud as the American Thunder Exhaust System with less interior resonance. The Force II exhaust system has been designed with the latest exhaust technology available. Through this technology, you will experience improvements in acceleration, passing power, and fuel mileage. The key to these 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 Force II system comes with a three chamber muffler(s) that will give you plenty of Flowmaster sound under hard acceleration but low sound levels while cruising. Kits include all hangers, clamps, and mounting hardware for an easy installation.
* Shipping Notes: Please note FREE Shipping refers to shipping within the contiguous contential US. All other locations extra. If your order will be delayed you will be notified via email the estimated shipping date.
Total Reviews for this product: 0
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I watched countless YouTube vids of axle backs for my car. Let me say they're essentially useless! Based on the videos I had my heart set on a ford racing or borla touring exhaust. They seemed to have the deep sound I was looking for without being obnoxiously loud. I was avoiding the flowmaster setup based on a few videos that made it sound too high-end and not rumbly. I was set to spend 700 on the borlas but stumbled on a vid of the flowmasters that sounded good. So I decided to risk it to save some dough. I'm not disappointed. I put them on in under an hour. The fit is stellar. So easy to line up in the valence, looks great! If you're looking for a crazy loud system this is NOT for you. It's not much louder than stock, but has a much beefier sound. There's no drone in the cabin unless you really are looking for it. At cruising speeds with the radio on you can't hear the exhaust. Dip your toes into the gas tank and it roars pretty good, but again nothing obnoxious. I think it's perfect for a daily driver.
Bone stock 2014 Mustang V6
Flowmaster American Thunder Exhaust System Nissan Titan 2004-2006
Nice sound, but only had them on for two years tail pipes rusted out. And muffler looks like it will not last the summer
Super chip, and leveling kit
Flowmaster American Thunder Exhaust System Dodge RAM 1500 2006-2007 1/2 Ton 5.7L HEMI
Had the American thunder cat back installed by dealer. Sounds ok from the outside. Has a terrible load low pitch drone the feels like it vibrating the inside of the car. the sound is most noticable as the rpm reach the point where the car up shifts. The noise is very annoying. I will be making an appointment to replace the original.
2013 challenger rt
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