The Flowmaster Sound is the true tone of American muscle and performance. Available in a wide range of domestic and import applications for automobiles and trucks. Flowmaster mufflers produce more power than Original Equipment (OE) and competitive aftermarket products.

What makes Flowmaster so unique is that its performance improvement is paired with our unique exhaust tones. The Flowmaster Sound is offered in many different tones depending upon the muffler series. From the deep, aggressive tone of the 40 Series to a quiet and subtle, but unmistakably rich Flowmaster tone of the 70 Series.

40 SERIES^™
Delta Flow^®
Performance Street & Strip

The 40 Series™ Delta Flow® is a milder sounding street and strip muffler that generates a powerful, aggressive sound outside the vehicle, a lower interior resonance while improving your torque and horsepower.

50 SERIES^™
Delta Flow^®
Performance Street

The Flowmaster 50 Series™ Delta Flow® muffler is designed to produce a mellow, deep sound in most vehicle and truck applications. It is milder than the 40 Series™ mufflers on the outside of the vehicle, and is significantly quieter inside the vehicle, yet it still has the right performance sound and feel which is achieved with the use of a special Resonant Tuning Chamber within the muffler. Performance is comparable to the 40 Series.™

60 SERIES^™
Delta Flow^®
Performance Import

The 60 Series™ Performance Import muffler is designed specifically to bring Flowmaster performance to smaller cars and trucks with small displacement 4- and 6-cylinder engines. All 60 Series™ mufflers feature Delta Flow® technology for increased torque and horsepower and reduced interior resonance. When fitted with a standard tailpipe, the 60 Series™ produces a mellow sound. A larger diameter tailpipe will create a deeper tone both inside and outside the vehicle.

80 SERIES^™
Performance Street

The 80 Series™ performance street muffler is specially designed for applications where the muffler must be mounted transversely (crossflow) behind the rear axle, either to match an OE system or for increased ground clearance. The 80 Series™ is a true crossflow with single or dual inlet/dual outlet configurations and produces an aggressive muscle car sound. (1982-2002 Camaro and Firebirds).