Flowmaster manufactures an extensive selection of Street and Race Mufflers for a wide range of applications and sound aggressiveness. Flowmaster make mufflers designed for trucks and cars from big block engines all the way to small 4 cylinder engines and everything in between.

• Outlaw Series Exhaust Systems/Kits feature race-bred mechanisms that guarantee minimal restriction and only small reduction on sound over open exhaust tubing on non-catalytic converter-equipped vehicles. With new vehicles featuring catalytic converters, Outlaw Series Exhaust Systems can be suitable with frequent road generating. If you desire the greatest in competitive appearing performance, Outlaw Series Exhaust Systems is definitely the way to go.
• The classic sound of a Flowmaster chambered exhaust, our American Thunder Series features mufflers tuned to deliver more power, torque, throttle response and mileage. Best of all, American thunder systems take dignified vehicles and deliver great performance tone especially designed for muscle car and truck vehicles. Flowmaster American Thunder is the most authentic muffler sound Flowmaster offer.
• Flowmaster American Thunder Pro Series systems deliver the same great aggressive exhaust tone loved by many with the American Thunder chamber exhaust system, but with a deeper, uniquely special tone due to the use of flowmaster laminar flow muffler technology. Available for a wide variety of applications including late model Mustang, Camaro and diesel vehicles.

• Flowmaster newest laminar flow technology muffler, the dBX Series delivers the same fine qualities as the American Thunder Pro Series mufflers with a deep tone and great total acceleration sound, but in a compact case, perfect for smaller vehicles. The dBX features a 304 casing so they can be polished to a brilliant luster, a common need among sport compact vehicles. If you want a truly track-tested, dyno-proven system that brings a uniquely different tone, Flowmaster dBX systems are the perfect fit.
• Flowmaster Force II System is best for customers looking for some level of performance tone improvement, but worried about installing a system that is too aggressive for everyday street driving. The Force II systems commonly incorporate larger displacement mufflers and resonators to control total sound, but increase the "performance impression" made by the vehicle. Flowmaster Force ll systems are a nice way to step up performance and tone on any vehicle.