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 and Hushpower systems to deliver that classic 5.0 liter sound along with additional fuel mileage and power. The Flowmaster American Thunder Axle-back kit (PN:817496) for the 2011 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 system is constructed with mandrel bent 3.00″ diameter.  View the Installation Video after the jump:

Both kits are around $400, and easy afternoon DIY means no muffler shop labor costs!

Flowmaster 819109 2011 Mustang GT Hushpower Mufflers

Flowmaster 817496 2011 Mustang GT 5.0L SS Mufflers

This innovative Hushpower system (PN:819109) features race-proven 3.00″ Pro Series “Shortie” mufflers for an incredible sound, with a moderate sound level and is dyno tuned to provide maximum gains in exhaust system efficiency through our unique patented technology. The system is covered by Flowmaster’s 3-year warranty and is constructed with durable 409S stainless steel and finished off with 4.00″ polished tips.

Both kits feature 409S stainless steel tubing for maximum durability and includes a 4.00″ diameter polished tips with embossed logo that exit through the factory rear valence cutouts. As with all Flowmaster products, they are built in the USA and backed by our limited 10-year warranty. Noticeable power and mileage gains.

Installation video and sound clip courtesy LateModelRestoration.com