Flowmaster Mufflers Super 40

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Super 40 Muffler
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Features

  • The Flowmaster Super 40 Muffler bellows the deepest tone available for high-horsepower street cars
  • Quality Flowmaster muffler crafting uses aluminized steel for corrosion resistance and precise mig welds for maximum durability
  • The Flowmaster Super 40 Muffler keeps the tone outside with advanced Gen II Delta Flow chamber deflector technology
  • 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 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 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 Muffler employs precision deflectors in the 2-chamber design that keep powerful sound mostly outside.

Also ideal for dual exhaust cruisers, the Flowmaster Super 40 Muffler boasts the quality construction you’d 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 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.

Average Customer Rating

  (68)
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wow

Posted on 10/31/2006 by Chris S. - 2003 Ford Focus (West View,PA)

0 of 2 people found the following review helpful.

"love the sounds just wish my focus had a better way to hang this muffler it rattles a little but still great sound"

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About Chris S.
Vehicle
2003 Ford Focus
I use my vehicle for
everything
 
Perfect 2006 Silverado 5.3 exhaust

Posted on 10/09/2009 by Michael C. - 2006 Chevy Silverado (Nicholasville,KY)

1 of 1 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"Awesome sound, excellent value"

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About Michael C.
Vehicle
2006 Chevy Silverado
I use my vehicle for
off road toy
 
sound great

Posted on 10/07/2009 by Daniel M. - 2007 Dodge Charger (Plainfield,IL)

Appearance
Ease of Installation
Price/Value
Quality

"sound great on an 07 daytona"

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About Daniel M.
Vehicle
2007 Dodge Charger
 
Flowmaster Super 40

Posted on 08/12/2009 by Levi W. (Benton,IL)

2 of 2 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"My Flowmaster was shipped to me extremely fast. I got it installed and I love it! The sound quality is amazing. I ecommend this product to everyone. Great tone, and not loud at all."

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About Levi W.
Vehicle
1990 Honda CR-X
Vehicle
2000 Chevy Blazer
Vehicle
2004 Honda S2000
I use my vehicle for
Daily Driver
 
Awesome sound!!!

Posted on 02/10/2009 by Justin F. - 2006 Pontiac GTO (Centreville,VA)

6 of 8 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I love the sound of the Flowmaster Super 40 Series mufflers. The classic muscle car sound they provide is second-to-none."

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About Justin F.
Vehicle
2006 Pontiac GTO
I use my vehicle for
pleasure
 
Great!

Posted on 12/28/2008 by Rodney G. - 1976 Chevy Silverado (Silver City,NM)

4 of 6 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I love these new mufflers. It makes my Chevy truck rock! The sound is incredible - I would recommend them to all you all!"

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About Rodney G.
Vehicle
1976 Chevy Silverado
I use my vehicle for
driving back and forth to work mostly, for now anyway
 
Flowmaster Super 40

Posted on 12/02/2008 by Scott P. (Cornville,AZ)

4 of 5 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"This product is worth the money and the wait. Knowing i can get great products from a reliable company makes me want to spend all my mad money. Thanks"

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About Scott P.
 
Great Flowmaster sound

Posted on 10/24/2008 by Hank B. - 2008 Dodge Ram (Aubrey,TX)

7 of 8 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I have a 2008 Ram 1500 with the 4.7L engine. I was skeptical about putting the flowmaster on since I didn't have the hemi, but I'm glad I did. Muffler sounds great and gives me that deep throaty sound I was looking for. Will definitely buy flowmaster in the future and autoanything's service has been excellent."

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About Hank B.
Vehicle
2008 Dodge Ram
I use my vehicle for
daily driver
 
Sounds Great

Posted on 09/19/2008 by Gregory H. - 1987 Toyota Pickup (Wickenburg,AZ)

6 of 7 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"I installed this muffler on a 1987 toyota pickup w/ a 22r. it sounds amazing! doesnt sound ricey in the least. =]"

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About Gregory H.
Vehicle
1987 Toyota Pickup
I use my vehicle for
daily driver
 
It Brought my 318 to life and improved gas milage

Posted on 09/12/2008 by Jeffrey S. - 1994 Jeep Grand Cherokee (Westford,MA)

8 of 8 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"When i had the flowmaster muffler installed i noticed a huge increase in horsepower and my gas mileage went up to 17-18 around town. This muffler gives the 318 a nice throaty sound and is not loud from the inside of the truck. I would totally buy this muffler again its well worth it"

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About Jeffrey S.
Vehicle
1994 Jeep Grand Cherokee
I use my vehicle for
Commuting,Off roading, Travel
 
Super 40

Posted on 08/15/2008 by Martin G. - 2008 Dodge Dakota (La Salle,MI)

3 of 8 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"Perfect sound. Had it on for about 3 weeks and it seems like its getting louder."

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About Martin G.
Vehicle
2008 Dodge Dakota
 
Flowmastuh'

Posted on 08/12/2008 by Glenn F. - 2008 Ford Ranger (Mashpee,MA)

3 of 9 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"great sound performance and overall quality ive been buying flowmaster for as long as i can remember, i own a 95 jeep wrangler with 38 inch tires on a 12 inch lift and a 454 under the hood and the exhaustr i chose was flowmaster"

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About Glenn F.
Vehicle
2008 Ford Ranger
I use my vehicle for
everything
 
Super 40's

Posted on 05/29/2008 by Martin H. - 2006 Chevy C/K 1500 (Wildorado,TX)

9 of 16 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"The super 40 flowmasters sound great there not to loud but there also not to quiet."

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About Martin H.
Vehicle
2006 Chevy C/K 1500
 
Chevy '00 Tahoe 5.3L

Posted on 05/09/2008 by Tony B. (Madison,WI)

5 of 7 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"Overall it is a good product. I went for a straight muffler swap and ran into some problems. The muffler is painted so be sure to grind off paint in order to get a good weld. Didnt fit correctly so ran into a little extra work in the install but that was probably my fault. Also it is not as loud as I would have expected but I also only have single exhaust. Sounds great and has good tone with no drone. Not loud in the cab at all, even with the windows down. Good product and I would recommend it to others"

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About Tony B.
I use my vehicle for
everything
 
salinas

Posted on 05/07/2008 by Emmanuel S. - 2008 Ford Mustang (Brownsville,TX)

4 of 7 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"this flowmaster super 40 is the best sounding car in my city, i am very satisfied with the sound and performance quality."

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About Emmanuel S.
Vehicle
2008 Ford Mustang
I use my vehicle for
anything
 
so easy and so nice..... deep sound

Posted on 04/24/2008 by Marco H. - 2005 Dodge Ram (Centerville,MA)

4 of 8 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"I love the new sound of my truck. .... Is everything I was looking for."

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About Marco H.
Vehicle
2005 Dodge Ram
I use my vehicle for
fun
 
Clean

Posted on 04/03/2008 by Jeffery R. - 1996 Lincoln Mark VIII (Boynton Beach,FL)

4 of 5 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"I put these on my Mark VIII LSC with all stock piping and they sound real clean and nice. Great addition at a great price."

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About Jeffery R.
Vehicle
1996 Lincoln Mark VIII
 
FINDING EXCELLENT 'S IN SERVICE

Posted on 03/31/2008 by Charles W. - 1983 Porsche 911 (Indianapolis ,IN)

2 of 7 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"FAST SERVICE"

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About Charles W.
Vehicle
1983 Porsche 911
I use my vehicle for
STRESS RELIEF AND CLUB DRIVING
 
The Super 40's are just what the Mustang needed..

Posted on 03/29/2008 by Eduardo B. - 2000 Ford Mustang (Hutto,TX)

3 of 4 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I liked the Flowmaster Super 40's series because of the reputation and quality. Sure enough, these bad boys sound great!! I didn't get the drone at 2000 rpm and the sound was just right for me. I would recommend these for someone that wants to be noticed, but not be obnoxiously loud."

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About Eduardo B.
Vehicle
2000 Ford Mustang
I use my vehicle for
fun, weekends
 
flowmaster on acura legend..very nice deep tone!!

Posted on 03/24/2008 by Andre' M. - 1993 Acura Legend (Williamsburg,VA)

1 of 5 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I put a flowmaster muffler on my custom acura legend..and it sounds really deep and great!! not as loud as i thought it would be..but i hear it gets louder with age!!!"

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About Andre' M.
Vehicle
1993 Acura Legend
I use my vehicle for
commuting, custom
 
Super 40 Flowmasters

Posted on 03/22/2008 by Mark F. (Lilburn,GA)

5 of 5 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"These were put on a 2008 Charger R/T They sound excellent IMO. Can be loud in the interior at times, so if you don't want that, then go with the 50's."

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About Mark F.
I use my vehicle for
Daily driver
 
Good Buy

Posted on 03/20/2008 by Uriel B. (Judsonia,AR)

0 of 2 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"The muffler it self is built tough, instals in little time, and also this particular muffler has a solid performance sound."

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About Uriel B.
I use my vehicle for
Off-Road
 
Great sound from flowmaster yet again

Posted on 03/18/2008 by Brian P. - 1998 Chevy Blazer (Stevens Point,WI)

5 of 7 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I love this "muffler". I installed it on a chevy 4.3, it's just as loud as stright pipe but it dosent have the anyoying 4.3 sound, Highly recommended!"

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About Brian P.
Vehicle
1998 Chevy Blazer
I use my vehicle for
 
Great exhaust

Posted on 02/18/2008 by Ryan K. - 2005 Ford F150 (Louisville,KY)

6 of 8 people found the following review helpful.

"I just put this muffler on my 05 ford f-150 and it sound great"

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About Ryan K.
Vehicle
2005 Ford F150
I use my vehicle for
Travel and Family Activites
 
tina

Posted on 01/10/2008 by Tina R. - 2003 Dodge Ram (Carlyle,IL)

2 of 5 people found the following review helpful.

"easy install did it myself in 45 minutes, great sound even on single exhaust, perfect fit to boot"

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About Tina R.
Vehicle
2003 Dodge Ram
I use my vehicle for
towing,hunting and general truck use
Showing 1 - 25 of 68 Customer Reviews
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