Flowmaster Exhaust Systems - American Thunder

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Flowmaster American Thunder Exhaust Systems
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Features

  • The Flowmaster American Thunder Exhaust System is custom-crafted for your specific year, make and model
  • Boldly blasts the famous Flowmaster tone at full volume
  • Available in single or dual, rear or side exit configurations for most vehicles
  • Immediately boosts power by 5% - 10% on average, and helps save gas
  • Powered by one of Flowmaster's track-proven chambered mufflers
  • Mandrel-bent exhaust pipes for restriction-free flow
  • All aluminized steel construction fights corrosion
  • Includes a full hardware kit and detailed instructions—most kits can be installed at home
  • Stainless tip(s) included with many American Thunder Systems
  • Made in the USA
  • Your Flowmaster American Thunder Exhaust System is backed by a 3-year warranty

Description

Make some space next to baseball, mom and apple pie: Flowmaster American Thunder Exhaust Systems belong on the list of beloved things that define the Red, White and Blue.

You don't just get some sound and a little power with Flowmaster's most popular kits—you get overwhelming horsepower gains, a handy boost in MPGs, and the most famous full-volume exhaust tone in the automotive world. Not to mention, each Flowmaster American Thunder Exhaust is custom-bent from quality aluminized steel to fit your specific year, make and model.

Best yet, Flowmaster American Thunder Exhausts give you configurations choices. Pick from single or dual kits, side or rear exits, or even specialty pipes made just for your ride. Each is powered by a renowned Flowmaster chambered muffler and comes with all the parts you need for a quick install.

Loud, powerful and uniquely American. Bolt-on your own American Thunder today!

Average Customer Rating

  (255)
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a little rumble for my 2003 Chevy 1500 HD crew cab

Posted on 07/01/2008 by Brian T. - 2003 Chevy Silverado (Lincoln University,PA)

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Ease of Installation
Price/Value
Quality

"Very easy installation. hangers were a perfect match. Welded it together instead of clamping it. The sound is perfect for my truck, not annoyingly loud, just enough to get your attention. My wife didn't like the stock exhaust, she couldn't hear me pull in the drive way. Now she can, thanks Flowmaster!"

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About Brian T.
Vehicle
2003 Chevy Silverado
 
Tacoma dual system

Posted on 07/01/2008 by Regan W. - 2008 Toyota Tacoma (Gainesville,VA)

Appearance
Ease of Installation
Price/Value
Quality

"This exhaust system was a breeze to install, it sounds amazing, and i know it will last. Great price for a great kit!"

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About Regan W.
Vehicle
2008 Toyota Tacoma
I use my vehicle for
commuting, hunting, fishing, everything
 
Love it...

Posted on 06/17/2008 by Joseph R. (Milford,OH)

Appearance
Ease of Installation
Price/Value
Quality

"I had a Magnaflow on this truck for 3 years and it rotted off. The Flowmaster looks nicer, has a better sound and required just a few modifications to make it fit like it grew there. Just a little trouble getting both rear exit pipes to sit at the same heighth. Overall this is a very nice system. Just the right amount of rumble...."

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About Joseph R.
I use my vehicle for
work and hauling boat
 
06 Durango SLT 4.7

Posted on 06/14/2008 by Joseph O. - 2006 Dodge Durango (Ellicott City,MD)

0 of 1 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"It was very hard to remove the old exhaust, but instalation of the new exhaust was very easy."

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About Joseph O.
Vehicle
2006 Dodge Durango
 
Freakin Outstanding!!!

Posted on 06/13/2008 by Demetrius R. - 2008 Chevy Tahoe (Virginia Beach,VA)

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Ease of Installation
Price/Value
Quality

"After install, which was easy as I looked at the muffler shop do it, the exhaust performed flawlessly!! The sound is so mean it's unreal, the Hemi is finally breathing right. I put a max energy pro on it, Airram intake w/ the scoop, throttle body spacer and let me tell you, a completely different truck. Thanks a lot for an outstanding product and price!! Demetrius Virginia Beach,Va United States Navy"

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About Demetrius R.
Vehicle
2008 Chevy Tahoe
I use my vehicle for
Work
 
03 GMC 4X4 6.0

Posted on 06/02/2008 by Jim R. (Castalia,OH)

Appearance
Ease of Installation
Price/Value
Quality

"Instalation was good needed 110 welder only problem i had. Performence is great love the sound, recomend cutting tailpipe off at old muffler. Gained about 1.5 mpg."

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About Jim R.
 
awesome

Posted on 05/27/2008 by Ryan I. - 2004 GMC Sierra (Portland,ME)

3 of 3 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"awesome system, saved me almost 2 mpg. That is a lot when you only get 12. Cannot complain about the sound either, sounds awesome. HIGHLY RECOMMEND."

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About Ryan I.
Vehicle
2004 GMC Sierra
I use my vehicle for
everything
 
Flowmaster American Thunder 700 series 2006 Titan Truck

Posted on 05/22/2008 by Herbert H. (Cassadaga,FL)

2 of 2 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"Directions were simple but adequate. I have air tools, so removing the old exhaust and installation was easier. I couldn't be happier with the sound. It's a very deep rumble. Doesn't resonate bad in the cab, but sounds off when you get on it. It's louder than stock, but not obnoxious. I think when people install the FM they need to listen to it next to a stock vehicle beside it afterwards to hear the improvement before reviewing how loud it isn't. Had optional pipes to run duals out back or behind wheels. Placed mine behind wheels."

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About Herbert H.
I use my vehicle for
cruising and dirt bike hauling
 
good

Posted on 04/09/2008 by Brandon K. - 1991 Chevy Camaro (Caledonia,MI)

1 of 3 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"great sound... not quite as loud as I thought :)"

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About Brandon K.
Vehicle
1991 Chevy Camaro
I use my vehicle for
street/strip
 
dodge ram 1500 with a hemi

Posted on 04/01/2008 by Kenneth P. - 2004 Dodge Ram (Lisle,IL)

2 of 2 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"i think its the best exhaust system out there. i have no problems. the sound is awsome and the power is sweet."

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About Kenneth P.
Vehicle
2004 Dodge Ram
I use my vehicle for
offroad, fishing, travel, and being on the farm
 
best cat-back system by far

Posted on 03/31/2008 by Alex U. - 2000 Ford Mustang (Ocean City,MD)

4 of 6 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"gotta love that flowmaster rumble. sounds amazing looks nice. what more can you ask for."

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About Alex U.
Vehicle
2000 Ford Mustang
 
04' F-150

Posted on 03/30/2008 by Jason H. - 2004 Ford F-150 (Rock Springs,WY)

4 of 7 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I am very happy with the American Thunder Flowmaster System. It is not as loud as I thought ti would be but it has a very nice rumble and sound to it. It definately turns heads. I also want to thank Auto Anything for getting it to me fast, very awesome service."

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About Jason H.
Vehicle
2004 Ford F-150
 
good sound

Posted on 03/25/2008 by Lonnie B. (Fort Bragg,NC)

3 of 5 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"Overall this piece is great. install was easy but the instructions were a bit vague. Also if you have lited your truck as I have you will need to slightly change the fit of the exit pipes and the way the muffler sits. But it i a great sound and still looks good."

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About Lonnie B.
 
2001 silverado 2500hd

Posted on 03/19/2008 by Dennis P. - 2001 Chevy Silverado (Modena,NY)

4 of 6 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"very easy to install. sounds awesome. it only took about 45 mins to install. would recommend this product to anyone."

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About Dennis P.
Vehicle
2001 Chevy Silverado
I use my vehicle for
towing and commuting
 
Great Mufflers

Posted on 02/13/2008 by Gerard B. - 2005 Ford Mustang (Oxon Hill,MD)

4 of 10 people found the following review helpful.

"The sound was just what I was looking for."

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About Gerard B.
Vehicle
2005 Ford Mustang
I use my vehicle for
Driving
 
Exhaust

Posted on 02/12/2008 by Melissa J. - 1999 Chevy Silverado (Rigby,ID)

2 of 4 people found the following review helpful.

"It sounds and looks good"

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About Melissa J.
Vehicle
1999 Chevy Silverado
I use my vehicle for
Work and Everything else
 
Sounds GREAT with the HEMI

Posted on 02/11/2008 by Jason L. - 2007 Dodge Ram (Ponca City,OK)

6 of 8 people found the following review helpful.

"Great product! Big improvement on the stock system. Worth the money. I had a little trouble getting the dual exhaust level but that was purely a cosmetic issue. The clamp are little tough to tighten down but with an extension on the ratchet it tightens much easier."

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About Jason L.
Vehicle
2007 Dodge Ram
 
2004 toyota tundra

Posted on 02/07/2008 by Russell N. (Creola,AL)

3 of 5 people found the following review helpful.

"Easy install.sounds great but, tips need to be larger."

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About Russell N.
 
SOUND

Posted on 01/30/2008 by Cecil S. - 2005 Toyota Tacoma (Milton,FL)

4 of 9 people found the following review helpful.

"I LIKE THE SYSTEM BUT DO NOT LIKE HOW LOUD IT IS. I WOULD LIKE TO HAVE A MUFFLER THAT WAS ATLEAST HALF AS NOSIE.DO YOU HAVE ANYTHING. I DO LIKE HOW FAST YOU GUYS SHIPPED. AND I WILL BE ORDERING FROM YOU AGAIN. THANKS"

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About Cecil S.
Vehicle
2005 Toyota Tacoma
I use my vehicle for
EVERY THING
 
Niiiice

Posted on 01/19/2008 by Eric M. - 2002 Chevy Silverado (Sykesville,MD)

4 of 6 people found the following review helpful.

"Bought it to add some sound to my truck. Sounds great, and improves efficiency. Easy to install using general everyday tools. Highly recommended if you want to add some quality sound, improve exhaust flow, but not "break the bank"!!! -Eric Baltimore, MD"

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About Eric M.
Vehicle
2002 Chevy Silverado
I use my vehicle for
EVERYTHING!!!
 
pleasantly surprised

Posted on 01/15/2008 by Gregory K. - 2003 Dodge Durango (Pittsburgh,PA)

1 of 1 people found the following review helpful.

"ordered the flowmaster exhaust for my "03 durango to replace a rusted dynomax. delighted to say that the cabin "rumble" is reduced with the flowmaster over the old dynomax system. overall exhaust sound is quieter than the dynomax but still turns a few heads. easy to install."

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About Gregory K.
Vehicle
2003 Dodge Durango
I use my vehicle for
commuting, travel, and hunting.
 
Exaust

Posted on 01/12/2008 by James B. - 1995 Dodge Ram (Wynantskill,NY)

1 of 1 people found the following review helpful.

"sounds great"

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About James B.
Vehicle
1995 Dodge Ram
I use my vehicle for
everything
 
Very happy

Posted on 01/02/2008 by Dan A. - 2004 Ford F150 (Orlando,FL)

2 of 2 people found the following review helpful.

"The system is great. Easy to install and looks and sounds great. Very happy with it. Most impressed with AutoAnything service. Ordered 12-17 and got it 12-20, just in time for Christmas."

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About Dan A.
Vehicle
2004 Ford F150
I use my vehicle for
everything
 
2003 SVT Mustang Cobra

Posted on 12/28/2007 by John B. - 2003 Ford Mustang (Arroyo Grande,CA)

1 of 2 people found the following review helpful.

"Good exhaust. Easy to install. Great sound, though a little louder in the car than I'd hoped for."

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About John B.
Vehicle
2003 Ford Mustang
I use my vehicle for
Commuting and fun
 
Nice Kit for 1985 TransAm

Posted on 12/27/2007 by Kenric M. - 1985 Pontiac Trans Am (Jamison,PA)

2 of 2 people found the following review helpful.

"Flowmaster 17234 Cat Back kit. I was told this kit would only work for 86 to 91 cars, but I was Plesantly suprised how nicely it fit on my 85 TA. It only took about an hour and fit perfectly with the stock Hangers. Nice rumble but not very loud. Should keep my teen out of trouble:-) Rick"

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About Kenric M.
Vehicle
1985 Pontiac Trans Am
I use my vehicle for
Pleasure
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