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Flowmaster manufactures a wide variety of Street Mufflers for a wide range of applications and sound choices. We make mufflers designed for trucks and cars with big block engines all the way to small 4 cylinder engines and everything in between. 


And depending on your choice of sound, we have muffler series with mild , moderate, aggressive, and very aggressive sound.  Check out our different series mufflers. If you don’t find what you are looking for or just unsure of your choices, call our technical support department at 707-544-4761
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Made in USA Made in USA

Flowmaster Mufflers Differences Explained


Remember, our Stainless Steel Mufflers come with Lifetime Limited Warranty.

 

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FM_Super_10_Cutaway
Looking for the most aggressive sounding Flowmaster muffler available? Flowmaster’s new Super 10 Series mufflers are so aggressive that we can’t even recommend them for use on ….
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The muffler that started it all, the original 40 Series Muffler is an aggressive sounding street/strip muffler that delivers a powerful “Flowmaster….
FM_Super_44_Cutaway
The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing 2-chamber street muffler we’ve ever built! Available in either 4095 Stainless ….
Developed from our Top Ten race muffler lineup for use on the street and strip. Utilizing Delta Flow Technology, this muffler gives the best performance to….
Flowmaster’s Delta Flow 40 Series two chamber design incorporates Flowmaster’s patented Delta Flow technology. The “Delta” deflectors generate increased scavenging for better performance and…

 

For true dual exhaust performance where only a single exhaust system will fit (such as is commonly found in classic Camaros and Firebirds), the 80 Series Cross-Flow muffler fits transversely….
The 50 Series Heavy Duty Muffler is appropriately named, a tough customer just like the trucks it was designed for. With 4.00-inch internal components and large case size, these mufflers help….

Flowmaster has taken the laminar core of our classic HP-2 muffler and wrapped it in a new compact square case. The new Super HP-2 Series muffler offers the same great performance benefits and moderate tone that you would expect from our laminar flow mufflers, now in a new sleek styling.

Looking for a versatile muffler with lots of performance applications? The Pro Series Laminar Flow mufflers bring the latest in performance and sound ….
A Sound Alternative from Flowmaster! The perfect choice for a variety of vehicle styles and engine applications, Flowmaster’s dBX mufflers utilize cutting….
Designed to reduce interior sound and resonance, the 50 Series Delta Flow’s moderate exterior tone level is the result our advanced technology. This compact….
Flowmaster 60 Series Mufflers feature Delta Flow Technology to increase horsepower and torque in most four and six cylinder vehicles. These large case, short….
The Super 50 (formerly called 50 SUV) incorporates an increased case size with the innovative technology found in the 50 Series Delta Flow mufflers. The Super 50 Series’ large tuning chamber….
The 70 Series Big Block Muffler uses a longer case for increased volume and added sound reduction that will still fit many applications where the wider 50 Series Big Block muffler won’t fit. The….
Our largest and quietest muffler, the 50 Series Big Block Mufflers is made for tow vehicles, full-size trucks, large SUV’s and RV’s / Motorhomes. More than just compatible with big cubic inch engine….