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Flowmaster Super 40 Series Mufflers

161 Reviews
$135.00 - $186.00
List Price
$120.95 - $166.95
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Flowmaster Super 40 Series Mufflers

Center Inlet / Center Outlet

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$135.00
List Price
$120.95
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    Center Inlet / Dual Outlet

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    $148.00 - $160.00
    List Price
    $132.95 - $143.95
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      Center Inlet / Offset Outlet

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      $135.00
      List Price
      $120.95
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        Offset Inlet / Center Outlet

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        $135.00 - $148.00
        List Price
        $120.95 - $132.95
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          Offset Inlet / Dual Outlet

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          $148.00
          List Price
          $132.95
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            Offset Inlet / Opposite Side Offset Outlet

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            $135.00 - $186.00
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            $120.95 - $166.95
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              Offset Inlet / Same Side Offset Outlet

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              $135.00
              List Price
              $120.95
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                Dual Inlet / Dual Outlet

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                $148.00 - $160.00
                List Price
                $132.95 - $143.95
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                  Product Info
                  Features:
                  • The Flowmaster Super 40 Series Muffler bellows the deepest tone available for high-horsepower street cars
                  • Crafted from aluminized steel for corrosion resistance and precision mig welded for maximum durability
                  • Advanced Gen II Delta Flow chamber deflector technology keeps the tone outside
                  • Original two-chamber design maximizes horsepower and torque
                  • The Super 40 Muffler boasts the smooth look of Flowmaster's original black case
                  • Casing embossed with the Flowmaster name
                  • Your Flowmaster Super 40 Series Muffler carries a 3-year warranty
                  Description:

                  When sound and power matter most for your high-horsepower ride, pick the muffler that built Flowmaster's legendary reputation and unique tone. The Flowmaster Super 40 Series Muffler runs deeper and more powerful than any other street muffler out there-even Flowmaster's famed American Thunder 40 Series.

                  What's even more amazing about the Super 40 is the balance of deep Flowmaster tone and reduced interior resonance. Thanks to exclusive Gen II Delta Flow technology, the Flowmaster Super 40 Series Muffler employs precision deflectors in the 2-chamber design that keep powerful sound mostly outside.

                  Also ideal for dual exhaust cruisers, Flowmaster Super 40 Mufflers boast the quality construction you expect from Flowmaster. Each Flowmaster muffler is built with 16-gauge aluminized steel for corrosion resistance and fully mig-welded for maximum durability. Best yet, your Flowmaster Super 40 Series Muffler comes with their original black case and boasts a 3-year warranty.

                  Notes:
                  • Flowmaster Super 40 Mufflers come in a variety of inlet/outlet configurations and sizes, shown above. Select the inlet/outlet diameter you need from the drop down at right.
                  • ATTN: State of California Consumers
                    warning symbolWARNING: This product can expose you to chemicals including nickel (metallic) and chromium (hexavalent compounds) which are known to the State of California to cause cancer and birth defects, or other reproductive harm (For more information go to www.p65warnings.ca.gov)
                  Manufacturer Info
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                  Customer Reviews

                  Average Rating
                  Appearance
                  Ease of Installation
                  Price/Value
                  Quality
                  161 Customer Reviews
                  5 Star
                  128 (80%)
                  4 Star
                  28 (17%)
                  3 Star
                  3 (2%)
                  2 Star
                  2 (1%)
                  1 Star
                  0 (0%)

                  Wonderful rumble for the best price available

                  This muffler sounds absolutely awesome!! It has an aggressive, deep, race car sound! And, AutoAnything blew the doors off everyone's prices. I bought it for $80 less than the local shop quoted me!
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                  Posted By Daniel H (Sherwood, AR) / November 14, 2018
                  2005 Chevy Avalanche
                  Yes
                  No

                  Flowmaser Super 40 Series

                  Great exhaust! I can definitely tell the difference from replacing my 40 series with the Super 40! Same loudness, but slightly deeper tone, a deeper growl! Great pricing!
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                  Posted By Desmond S (HIRAM, GA) / October 16, 2017
                  2012 Dodge Ram
                  Yes
                  No

                  Perfect muffler

                  Great price great sound !!
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                  Posted By Joe D (Staten Island, NY) / August 26, 2017
                  2009 Dodge Ram
                  Yes
                  No

                  Sounds Awesome!!!

                  I initially considered the Flowmaster American Thunder Series direct replacement muffler for my 2015 Ram (5.7 V8), but the prospect of paying well over $300 for a 50 Series with some extra pipe for direct replacement just didn't make sense. I decided to go with a stainless Super 40 Series (Part#8530452), which I purchased via Auto Anything for $93. Installation at my local muffler shop was $80. The result: an awesome throaty sound with minimal cabin drone. Oh yeah, it cost me under $200, too!
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                  Posted By Lloyd B (Clarksville , TN ) / August 4, 2017
                  2015 Dodge Ram
                  Yes
                  No

                  2005 Pontiac GTO 6 Speed

                  These Super 40's really woke the car up. Very noticeable gain in acceleration. I also had my muffler shop install an X-Pipe and wow did this pairing wake this GTO up. Spent half of what a cat back system would of cost.
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                  Posted By RENE S (Arlington, TX) / March 24, 2017
                  2005 Pontiac GTO
                  Yes
                  No

                  Tough

                  Sounds great, sounds deep and mean like a truck should but not overly loud. Only thing is that there is a noticeable drone around 1700rpm although that could be just on my application.
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                  Posted By Chris a (Detroit, MI) / February 8, 2017
                  2002 Dodge Dakota
                  Yes
                  No

                  Super 40 Muffler for 2500HD

                  Shipping was fast, Fitment was great and sound is awesome.
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                  Posted By Toby S (SAINT MARYS, PA) / January 16, 2017
                  2016 Chevy Silverado
                  Yes
                  No

                  2015 Silverado

                  Easy to install and sounds great.
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                  Posted By Dan H (KALKASKA, MI) / December 14, 2016
                  2015 Chevy Silverado
                  Yes
                  No

                  Great mufflers

                  I bought two of these super 40's for my 2013 chrysler 200 s to make it louder and the instillation was easy but it wasn't as loud as I thought it would be even after removing the resonater but it did give it a deep type of sound to it.
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                  Posted By Ernesto M (BRIGHTON, CO) / September 13, 2016
                  2013 Chrysler 200
                  Yes
                  No

                  Super 40 series muffler

                  Amazing sounds great quality and a great price!!! Easy to install just getting the original exhaust off a bit of a pain but that's to be expected otherwise amazing ????????
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                  Posted By Darren P (Woodbridge, VA) / August 10, 2016
                  2004 Dodge Dakota
                  Yes
                  No

                  '13 Charger

                  did muffler swap and resonator delete and they sound great drone at around 2k rpms
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                  Posted By Jesse B (WILMINGTON, CA) / July 30, 2016
                  2013 Dodge Charger
                  Yes
                  No

                  super 40

                  .installation was easy after cutting off stock muffler. Sound is good but could be louder
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                  Posted By Robert K (Tupelo, MS) / July 24, 2016
                  1997 Jeep Grand Cherokee
                  Yes
                  No

                  My ram rumbles

                  I put this on my 2011 Ram 1500 and it put a throatier sound but not too much louder than stock. It is not that noticible in the cabin which is nice. I cannot tell you how much of a difference i felt as far as power due to other mods i installed but i love the sound of my truck now.
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                  Posted By Donald B (Smithtown, NY) / May 4, 2016
                  2011 Dodge Ram
                  Yes
                  No

                  Great Buy

                  This muffler provides a nice low toned growl. On a scale on 1-10, as far as noise level. I give it a 6 with a straight pipe. I am very pleased with this muffler. I recommend it to people looking for a perfomance sounding muffler.
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                  Posted By Will B (Louisville, KY) / March 30, 2016
                  2006 Acura TL
                  Yes
                  No

                  My 02 Chevy Silverado

                  I have used Flowmaster mufflers before. They last a very long time, they hold up very well to our weather conditions in Western PA & sound great. And for the price their a lot cheaper than other brands & out last everyone else.
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                  Posted By D P (BRADDOCK, PA) / March 26, 2016
                  2002 Chevy Silverado
                  Yes
                  No

                  flowmaster

                  This exhaust system gives me extra power and makes the vehicle sound like a champ. not too loud and not to quiet. deep low growl. awesome
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                  Posted By Randy C (Goose Creek, SC) / February 25, 2016
                  2016 Dodge Ram
                  Yes
                  No

                  Replaced copy cat muffler

                  Upgraded from another manufacturer's alleged performance muffler. Sounds GREAT and gained noticeable power !!!!
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                  Posted By Stephen W (Hamden, CT) / February 18, 2016
                  Yes
                  No

                  Used the 40 on alot of vehicles..

                  Only muffler I will ever buy for my trucks FJ cruisers..Tacomas..Sounds great and breaths well..
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                  Posted By Ryan W (Salt Lake City, UT) / February 5, 2016
                  Yes
                  No

                  Its ok

                  I like it it definitely sounds better than stock
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                  Posted By Zachary G (butler, PA) / November 29, 2015
                  2011 Chevy Silverado
                  Yes
                  No

                  Good stuff !

                  Its exactly what the previous detail say it is. If you want a low profile this muffler really does suppresses the noise quiet a bit, but also gives you the flow that your looking for and sound when you give it a little gas !
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                  Posted By Jerome S (Lakewood, CO) / November 6, 2015
                  2004 Chevy Impala
                  Yes
                  No

                  Great value for wnat you get.

                  Get quality of steel, took hours just to spread the pipe so it would fit the other piping. The only complaint I have is that my car is still a little too loud but it is a good sounding loud.
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                  Posted By Steven J (HUDSON, WI) / October 27, 2015
                  2002 BMW 3-Series
                  Yes
                  No

                  Awesome

                  Great product and they were easy to install.the sound coming off my Chevy 454 is awesome thanks
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                  Posted By Michael B (Magna, UT) / August 30, 2015
                  Yes
                  No

                  chevy 8.1

                  Sounds good, has a deep tone in the cab, and a nice rumble outside.
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                  Posted By Wyatt M (HILLSDALE, WY) / July 30, 2015
                  2003 Chevy Silverado
                  Yes
                  No

                  Dodge Challenger

                  Only needed one dual in/dual out. Deleted the resonators. It sounds great.
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                  Posted By Marcus B (Washington, DC) / July 8, 2015
                  2014 Dodge Challenger
                  Yes
                  No

                  2009 f150

                  This is the second f 150 I have installed the super 40 muffler on. Both have a deep tone and sound good.
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                  Posted By Tommy L (Ozark, AL) / June 27, 2015
                  2009 Ford F-150
                  Yes
                  No
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