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Flowmaster's American Thunder cat-back exhaust system for the 2013-2018 Ford Focus ST hatchback is perfect for the person looking for moderate to aggressive sound levels with all of the performance benefits that you would expect from Flowmaster. This bolt on DOR (Dual Out Rear) emissions legal system for the 2.0L L4 turbocharged engine features a specially tuned muffler and resonator, 2.25 inch mandrel bent stainless steel tubing, and 3.25 x 3.75 inch oval polished stainless steel tips. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
Stainless Steel Construction
Dyno Tuned For Maximum Performance
Great Perfomance Sound
Lifetime Limited Warranty
Fits 2013-2018 Ford Focus ST with a turbocharged 2.0L L4 engine
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.