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

  (50)
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Ease of Installation Ease of Installation
Price/Value Price/Value
Quality Quality
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Super 40's

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

1 of 1 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 Truck 1500
 
salinas

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

3 of 3 people found the following review helpful.

Appearance
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)

2 of 2 people found the following review helpful.

Appearance
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)

2 of 2 people found the following review helpful.

Appearance
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 4 people found the following review helpful.

Appearance
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)

2 of 2 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
nice sunny days.
 
flowmaster on acura legend..very nice deep tone!!

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

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)

3 of 3 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)

Appearance
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 6 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 7 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)

1 of 3 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
 
Great Sound

Posted on 01/10/2008 by Chuck M. (Arroyo Grande,CA)

0 of 1 people found the following review helpful.

"Easy install,Truck runs stronger,sounds great"

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About Chuck M.
I use my vehicle for
My 16 year old drives it.
 
Awesome Purchase f150 4.6 super40

Posted on 12/18/2007 by Morgan G. - 2002 Ford F150 (Willington,CT)

6 of 7 people found the following review helpful.

"I just installed a super40 in place of my 2002 f150's 4.6 stock muffler. The sound is mean even with stock piping and I noticed a clear increase in low end torque. Also in-cab sound is barely louder then stock. I would recommend this muffler for any application."

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About Morgan G.
Vehicle
2002 Ford F150
I use my vehicle for
commuting. outdoor activities
 
Awesome value

Posted on 12/12/2007 by Christopher L. - 1990 Chevy Truck 1500 (Thomaston,CT)

3 of 4 people found the following review helpful.

"This muffler has a nice deep tone but is not too overpowering. It is a great buy for the price and will give you the noticeable sound you are looking for."

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About Christopher L.
Vehicle
1990 Chevy Truck 1500
 
flowmaster super 40

Posted on 11/09/2007 by Richard W. (Houston,TX)

0 of 6 people found the following review helpful.

"I am not pleased with the sound of the super 40 I purchased. I put it on a 2000 toyota tacoma 4cyl and the sould is almost the same as the original muffler. I certainly expected more from this."

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About Richard W.
 
A++++ 2000 Jeep Cherokee dual

Posted on 11/08/2007 by Matthew C. - 2000 Jeep Cherokee (Toms River,NJ)

3 of 3 people found the following review helpful.

"i love the tone and the two chambers make a huge difference in comparison to the deltas. I used to have a 50 series delta and this super 40 puts it to shame in every way shape and form."

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About Matthew C.
Vehicle
2000 Jeep Cherokee
I use my vehicle for
offroading, daily driver, eating all the gas i put in it
 
wow, great noise

Posted on 11/08/2007 by Evan H. - 1996 Dodge Ram (Burke,VA)

"I originally had a series 70 muffler with my flowmaster exhaust. It took a little welding, but overall the 40 series sounds amazing, and there is definitely no power drawback from going down to a smaller muffler. Great product and get service."

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About Evan H.
Vehicle
1996 Dodge Ram
 
GREAT SOUNDIN SUPER 40s

Posted on 10/27/2007 by Jerry M. - 2003 Chevy Truck 1500 (New Caney,TX)

1 of 1 people found the following review helpful.

"THESE are the very best,I have ever had on any chevy truck.and I have had some pickups in my day.great sounding mufflers..."

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About Jerry M.
Vehicle
2003 Chevy Truck 1500
I use my vehicle for
daily driver
 
2000 Chevy Blazer Super 40

Posted on 10/21/2007 by Christopher P. - 2000 Chevy Blazer (New Hyde Park,NY)

1 of 1 people found the following review helpful.

"great product by flowmaster.. at first my truck was silent almost to the point where i didnt know it was runnning.. now its loud but not too loud.. a deep rumble exactly what i was looking for... auto anything shippied it in about 2 days i was very impressed will be doing buisness again veryy sooon! THANK YOU!"

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About Christopher P.
Vehicle
2000 Chevy Blazer
I use my vehicle for
hunting, fishing, travel, off roading
 
super 40 is super

Posted on 10/17/2007 by Mark R. - 2008 Ford F250 (San Antonio,TX)

1 of 1 people found the following review helpful.

""Super 40" is super. Huge sound even when crusing mid groul. I have another 40 series (not super) and not as throaty as super. My truck (08 super duty) sounds better than ever!!! Will be repeat customer very soon!!"

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About Mark R.
Vehicle
2008 Ford F250
I use my vehicle for
commute and light hauling
 
love the sound

Posted on 10/10/2007 by Jeff W. - 2003 Chevy Silverado (Beatrice,NE)

1 of 2 people found the following review helpful.

"Just what i expected"

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About Jeff W.
Vehicle
2003 Chevy Silverado
 
super 40

Posted on 09/29/2007 by Nicholas C. - 2001 Ford F350 (Stayton,OR)

1 of 1 people found the following review helpful.

"The super 40 has inproved my gas milage on my 01 ford with the V-10 and it sounds good to"

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About Nicholas C.
Vehicle
2001 Ford F350
I use my vehicle for
work and play
 
great sound and value

Posted on 09/29/2007 by Brandon S. - 2000 Ford Mustang (Marquette,MI)

"this is the second flowmaster super 40 I have owed and i would not own anything else makes a v6 sound like a v8 great for zr2's or v6 mustangs"

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About Brandon S.
Vehicle
2000 Ford Mustang
I use my vehicle for
friends vehicle
 
Flows are the sh*t

Posted on 09/22/2007 by Doug D. - 1998 Ford F150 (Slidell,LA)

1 of 1 people found the following review helpful.

"I like my super 40,but it's not as agressive as I thought it would be.Not much more than the regular 40."

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About Doug D.
Vehicle
1998 Ford F150
I use my vehicle for
commuting
Showing 1 - 25 of 50 Customer Reviews
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