VEHICLE FITMENTS
Fits 2007 to 2013 Chevrolet Silverado and GMC Sierra 1500 with a 5.3L Flex Fuel V8 engine and fits the Crew Cab with a 5.5 ft. bed and Extra Cab with a 6.5 ft. bed configuration. Also fits 2007 to 2008 Chevrolet Silverado and GMC Sierra 1500 with a 4.8L or 5.3L Flex Fuel engine on all wheelbases except the Extra cab with an 8 ft. bed configuration. Does not fit the 2007 Chevrolet Classic model.
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