Flowmaster 2011-2012 Shelby GT500 American Thunder Axle Back

The Ford 5.0 liter engine is back and delivers an incredible 412 Camaro-smokin' horsepower. To match the factory's re-issue of the famous 5.0 liter nameplate, Flowmaster set about re-engineering their American Thunder exhaust system to deliver that classic 5.0 liter sound along with additional fuel mileage and power. This new Flowmaster American Thunder axle-back exhaust kit for the 2011-2012 Ford Mustang features a pair of stainless steel, specially-built Classic Two Chamber mufflers that provide a very deep and aggressive sound level and is suited to the enthusiast who wants a distinctive and powerful exhaust note. The exhaust system is constructed with mandrel bent 3.00" diameter 409S stainless steel tubing for maximum durability and include 4.00" diameter polished tips with embossed logo that exit through the factory rear valence cutouts. A true bolt-on (Flowmaster engineers pride themselves on creating the best fitting exhaust systems available) exhaust kit that includes everything you need to easily install at home in your driveway using basic hand tools. As with all Flowmaster exhaust products, they are built in the USA and backed by our limited 10-year warranty.

• Noticeable power and mileage gains.

• True bolt-on installation.

• 409S stainless for maximum durability.

• Polished stainless tips with Flowmaster logo.

• Great performance sound