Street Muffler by Flowmaster®. Make a true performance statement with the Flowmaster Street Performance Mufflers! Tuned for maximum performance, they offer a rich exterior sound combined with a subdued (but noticeable) interior resonance. Manufactured applying the patented Flowmaster Delta Flow technology, these mufflers give different characters of sound and can be tuned to achieve the desired exhaust note.
- Available in 409S Stainless Steel or Aluminized Mild Steel
- Available with either Single or Dual Outlets
- 3-Year Warranty for Aluminized Mild Steel
- Limited Lifetime Warranty on Stainless Steel Mufflers
Like all Flowmaster mufflers, the 40 Series Delta Flow mufflers improve exhaust scavenging for increased torque and horsepower. The precision positioned Delta deflectors have a dual function, as they are positioned to create a low pressure zone that improves exhaust scavenging, while also reducing the interior resonance. The unique design of the 40 Series two chamber delta flow mufflers makes them perfect for performance cars used daily or on long drives. The exterior sound will turn heads, while the interior sound level provides the driver with the beautiful music of a performance engine at a comfortable sound level. The mufflers are fully MIG welded for maximum durability and you have a choice between aluminized mild steel and stainless steel construction.
Flowmaster mufflers differ in technology and tuning, and thus in tone and character, to give your performance engine a sound to your personal liking.
All Flowmaster mufflers are tuned for maximum performance. All Flowmaster mufflers produce a beautiful deep performance tone. Choosing the right Flowmaster muffler is not a technical decision – it is all up to your personal taste. It’s A Sound Decision®.
Flowmaster mufflers employ two unique technologies developed by the company; the patented Delta Flow and the Laminar Flow. They give different characters of sound and can be tuned to achieve the desired exhaust note. Flowmaster Exhaust System Technology is so versatile, and gives such a high degree of control, that it is used both by racers, who want maximum power, and by the U.S. Air Force in Stealth applications where maximum silence and minimum heat emissions are prime considerations. Be it for a domestic or import truck, SUV, off-road warrior, daily driver, muscle car, euro-spec cruiser or sport compact vehicle Flowmaster always has the right muffler for you.58.61 349.00
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.Product Reviews (29)Flowmaster® - Street MufflerAverage Rating: 5 of 5APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYShow Next 10 All Flowmaster Reviews(4.5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYFlowmaster Muffler2011 Chevy Camaro
| Posted by Henry | (Cedar Grove, NJ)
The muffler came in time, exactly as described. Sounds great. I would definitely recommend this product. The sales staff was very informative and knows the product well.5 people found this review helpful.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYGreat Products and Excellent Service.2000 Ford Explorer
| Posted by Darwin | (Brooklyn, NY)
I installed the Flowmaster Delta 50 on my 97 Explorer because my old, original muffler had seen better days. What I didn't expect was for my vehicle to have such a noticeable increase in horsepower! I can't say enough about how great it sounds when I'm driving down the highway. It has a nice rumble that's noticeable but not too loud.2 people found this review helpful.Was this review helpful for you? YesNo(4.5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYFlowmaster2007 Ford F-250
| Posted by Ken | (Harborcreek, PA)
I recently ordered a Flowmaster muffler from CARiD and the experience was a very good one. The order was filled very fast and sent. I received it in no time at all. It was in great condition and sound great on my truck, and I couldn't beat the price.3 people found this review helpful.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYThe Sound of a V8, the Way it Should Be2013 Dodge Ram
| Posted by Guy | (Edmonton, AB)
This muffler is a true direct fit and is very easy to install. It has 3 chambers so it is not the most aggressive Flowmaster but it does sounds aggressive under heavy acceleration. It is quiet however at low RPM. My only issue is when the HEMI is on 4 cyl mode, there is a very noticeable drone sound. As for increase in performance, it is noticeable instantly. There is definitely an increase of torque throughout the power band. Accelerations are much better now.7 people found this review helpful.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYHi1999 Ford F-150
| Posted by Jimmie | (Port Gibson, MS)
I got my muffler in good timing, had it put on. Sounds good! I have a TV in my truck, and while driving, I do not hear it in the cab. A great muffler, a little more torque. Haven t tried top end yet.6 people found this review helpful.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYFlowmaster 40 Series Mufflers 9425401967 Oldsmobile Cutlass
| Posted by Matthew | (Woodland Hills, CA)
These mufflers from Flowmaster are the quality I expected for my muscle car projects. They sound great and add performance to my rides.2 people found this review helpful.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYGreatness2001 Ford F-150
| Posted by Nathaniel | (Sunland, CA)
I have been wanting to put this baby on my f150, then I bought it! At a good price! Shipping was fast and man!, when I put this on... OMG! She now purrs like a flying Lion!!! Thanks, guys.4 people found this review helpful.Was this review helpful for you? YesNo
Product Reviews (29)
Product Reviews (29)