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Flowmaster Super 40 Series Mufflers

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Product Information

  • List Price:
    $116.46 - $129.40
  • Our Price:
    $89.99 - $99.99
  • Shipping:
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(132 Reviews)
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    Features

    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 Series Mufflers Customer Reviews

    Average Rating

    132 Customer Reviews

    There's nothing like cruz-in with the "FLOW"....

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    Reviewed by Richard G (Springfield, IL) — Sep 22, 2014 6:57 AM

    great "Flowmaster" sound!!! Really brings out the best in my 1986 IROC Z28 with a 355 cu in, roller, comp cam and balanced and blue-printed SBC...

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    great!

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    Reviewed by Patrick Q (HOLLIS, NH) — Sep 09, 2014 8:14 PM

    Happy with everything about this muffler, great buy.

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    Super 40

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    Reviewed by Chad D (BRASELTON, GA) Reviewed for a 2008 Chevy Silverado — Aug 22, 2014 8:30 PM

    Great muffler, great sound couldn't be happier with it

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    Awesome !!

    1 of 1 people found the following review helpful.
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    Reviewed by joel f (Lemoore, CA) Reviewed for a 2012 Chevy Silverado — Aug 19, 2014 2:01 AM

    Sounds great jus like description said! Thanks auto anything

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    Awesome!

    1 of 1 people found the following review helpful.
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    Reviewed by Dillon B (FORT WORTH, TX) Reviewed for a 2011 Jeep Grand Cherokee — Aug 18, 2014 8:19 PM

    Love the flowmaster 40 series!! Goods great in my Jeep

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    Super 40

    1 of 1 people found the following review helpful.
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    Reviewed by Thomas P (SPRING, TX) Reviewed for a 2011 Chevy Silverado — Aug 05, 2014 7:48 AM

    Very nice smooth sound. At one point on a previous truck there was no muffler and i loved the sound, except for the downshift it sounded horrible. Now with this flowmaster super 40 muffler i have decent sound that is not to loud inside the cab. Great muffler plan on putting h-pipe on next and will buy another soon . :)

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    Overall good muffler

    1 of 1 people found the following review helpful.
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    Reviewed by Matt K (EARLVILLE, IL) Reviewed for a 1997 Chevy C/K 1500 — Jul 09, 2014 6:38 AM

    I bought a di/do super 40 5 yrs ago and it completely rusted out on me. I bought the same thing again except in SS this time to prevent the rust. I now have dual turn downs instead of dual tail pipes and it is slightly louder and definitely deeper sounding. Since I've been running this muffler for 5 yrs I have noticed an increase in hp and mpg went up by 3-4 both on and off the highway. Easy to install as well took two hrs counting taking the old system off and putting the new one on.

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    Amazing

    1 of 1 people found the following review helpful.
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    Reviewed by Tiffany K (COLLIERVILLE, TN) Reviewed for a 2004 Dodge Dakota — Jun 26, 2014 8:23 PM

    Sounds good, looks good, what more could you ask for

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    TRUCK SOUND

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    Reviewed by john s (BEAUMONT, TX) Reviewed for a 1989 Chevy S10 Pickup — May 14, 2014 6:23 PM

    AFTER INSTALLING MY NEW MUFFLER AND ADDED 3FT. OF STRAIGHT PIPE PER SIDE I COULDN'T WAIT TO FIRE MY TRUCK UP AND HEAR THE NEW SOUND ---AWSOME !!!! THEN I HAD TO SHARE "WOW" thats what i heard ... satisfied > yes <, ease of instalation > yes <, recommend it-- again > yes <.

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    Flowmaster

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    Reviewed by KIRK S (OGDEN, UT) Reviewed for a 1997 Ford F-350 — May 05, 2014 1:43 PM

    Nice muffler I like but it's just not loud enough!

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