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!

Flowmaster Exhaust Systems - American Thunder Customer Reviews

Average Customer Rating

  (266)
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American Thunder for V6 Firebird

Posted on 08/12/2007 by Randy J. (Virginia Beach,VA)

"The american thunder exaust system for the V6 Bird a is nice upgrade from the stock system. It gives it a nice deeper sounding tone but it is still a far cry from the V8 version. I just thought that it would come a little closer to it's big brother. But that's a good as you are going to get in a V6."

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About Randy J.
 
flowmaster exhaust

Posted on 08/11/2007 by Scott H. (Richmond,KY)

"nice sound, not to loud not to soft. Installed in about two hours with everyday tools. The instructions were easy to follow and all the parts were an exact fit. The kit comes with both rear exit and side exit which is a plus. The exhaust has been on my truck a couple of weeks and Im very happy with it."

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About Scott H.
 
Flowmaster American Thunder

Posted on 08/10/2007 by Cory R. (Ann Arbor,MI)

"The sound of the flowmaster is unmatched. However the flowmaster for my car left about 3 feet of stock piping that it used to connect to the flexpipe/header which was a major letdown."

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About Cory R.
 
American Thunder

Posted on 07/25/2007 by Brandon S. (Brookeville,MD)

"Best investement. Easy to install, great sound makes my truck seem as if it is brand new. Even helped on gas mileage."

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About Brandon S.
 
flowmaster // f 150 04

Posted on 07/19/2007 by Mark G. (Goodfellow Afb,TX)

"nice sound pretty easy installation. but had trouble with the rear driver side mount, i couldnt get them level, but i went out the sides with it and everything sounds and looks great"

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About Mark G.
 
Thunder

Posted on 07/14/2007 by Alex M. (Trabuco Canyon,CA)

"I really like my new flowmaster set up. Although it sounds a bit different I had originally thought it still sounds great and I can't complain. Arrived next day very fast shipping"

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About Alex M.
 
z71 Flows

Posted on 07/11/2007 by Trenton P. (Lubbock,TX)

"great shipping and a great product with a beautifully deep sound. Not too loud, just what i was looking for."

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About Trenton P.
 
Awesome

Posted on 06/25/2007 by Penny H. (Thermopolis,WY)

"This exhaust is great. I highly recommend it. Not obnoxiously loud, but still an amazing sound. Makes my '02 Dodge sound really nice. Added some power too."

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About Penny H.
 
awesome

Posted on 06/13/2007 by Robert B. (Grove City,PA)

"Everything went together perfectly and fit perfect, even the hangers. Has a nice soft mellow tone even with windows down. Love it."

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About Robert B.
 
excellent exhaust

Posted on 06/07/2007 by Kent H. (Idaho Falls,ID)

"what more to say than it sounds incredible."

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About Kent H.
 
AWESOME

Posted on 06/01/2007 by Martin H. (Chelsea,MI)

"This website is the best!! The muffler system was exactly what I wanted and $100.00 cheaper than the manufacturers website and it arrived at my house sooner than I ever could have imagined. Thanks so much You have a customer for life!!"

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About Martin H.
 
Pretty darn good

Posted on 05/23/2007 by Kyle B. (Helena,MT)

"The install on these puppies was really simple. You do have to make a few adjustments to get them to fit correctly, but its not a big deal. I gained 2 mpg on my truck with these, and with as much as gas is, they'll pay themselves off by the end of year. The horsepower gains are noticeable, but the sound isn't. You can deffinately tell that they are flowmasters, but they sound more like a greddy from the cab. They arnt so loud as to annoy my neighbors, but they sound a hell of alot better than the stock system."

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About Kyle B.
 
Great system

Posted on 05/15/2007 by Anthony D. - 1997 Chevy Truck 1500 (Becida,MN)

"The exhaust system was easy to install and sounds awsome. It also looks great on my truck."

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About Anthony D.
Vehicle
1997 Chevy Truck 1500
I use my vehicle for
commuting
 
NICE RAM 1500

Posted on 05/09/2007 by George B. - 2003 Dodge Ram (Wilsonville,ON)

1 of 1 people found the following review helpful.

"GREAT SYSTEM. ALL THE PARTS WERE THERE, IT FIT REALLY WELL, ALMOST PERFECTLY. SOUNDS GREAT WITH THE SERIES 50 AND REALLY HELPS MY LITTLE 4.7 SCOOT BUT WITH COLD AIR AND A SUPERCHIPS UPGRADE. MILEAGE JUMPED BETTER THAN 20% WITH THE NEW PARTS AND THE TRUCK REALLY PERFORMS BRISKLY! LOVE THE SYSTEM!"

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About George B.
Vehicle
2003 Dodge Ram
I use my vehicle for
COMMUTING,HAULING,TRAVEL,ETC
 
good but not great

Posted on 05/08/2007 by Christopher G. (Bound Brook,NJ)

"In a whole i think its a good system, but my complaint was that it wasnt as loud as i thoguht it would be, and one of the clamps was to big for the pipe so I have a slight exhaust leak."

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About Christopher G.
 
Awesome sound and power 5.7L Hemi

Posted on 05/08/2007 by Norberto S. (Kailua,HI)

"I have the Flowmaster Super 40 series side rear exhaust. They are so easy to assemble and mount to the vehicle.It definitely gave me more power and great sound. Well worth the upgrade to your Hemi. I will recommend to anyone."

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About Norberto S.
 
BAD TO THE BONE

Posted on 04/18/2007 by Brian M. (Tomball,TX)

"RECIEVED EXHAUST KIT THREE DAYS AFTER ORDER,ALL COMPLETE,NO MISSING PIECES,AND NO FREIGHT DAMAGE.SOUNDS GREAT WITH BETTER THROTTLE RESPONCE AND HORSEPOWER GAIN.BEST PRICE ON THE INTERNET."

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About Brian M.
 
Flowmaster

Posted on 04/17/2007 by Siavosh N. (Laguna Beach,CA)

1 of 1 people found the following review helpful.

"Great sound when I step on it. Is a little bit quieter than I had hoped for but that is ok, the neighbors wont be so mad. Good exhaust if you want to have the sound and power then you want it. Pretty quiet at cruising speeds."

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About Siavosh N.
 
Chevy Silverado 4.8

Posted on 04/17/2007 by Travis K. (Flemington,NJ)

"Shipping on this item was great was at my house in about three days. The hardest part was getting the old system off, I had to heat the bolts up glowing red and then impact them off. Other than that it was a breeze. Looks good and sounds great too. Would definitely recommend."

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About Travis K.
 
Easy install, sounds great

Posted on 04/14/2007 by Nick S. (Rochester Hills,MI)

"Just remember to jack the body away from the frame to get the pipes in and you should have your new Flowmaster system installed in less than an hour. Great sound, I love it."

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About Nick S.
 
awesome

Posted on 03/22/2007 by Dawoud K. (Pullman,WA)

"sounds great on my 98' Integra. not to loud, not annoying AT ALL. makes it sound great!"

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About Dawoud K.
 
2003 Dodge Ram Muscle Truck Exhaust

Posted on 03/21/2007 by Robert B. (Surprise,AZ)

"The exhaust system installation was a breeze, it fit perfectly. The sound of the truck is assume."

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About Robert B.
 
1997 silverado 2wd 350 Great system!!!

Posted on 03/09/2007 by Joseph D. (Evans,GA)

"This is a great system. Not to loud but they know you are coming. It didn't fit perfectly but the install only took about an hour with little trouble."

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About Joseph D.
 
great

Posted on 03/07/2007 by Todd O. - 2002 Dodge Durango (Arnold,MD)

"You can really feel a difference with this exhaust easy bolt on just follow the instructions and a great sound. Remember you don't want a lot of sound I put a 3 inch flowtech on before this one and it killed my lowend and about made me deaf!! lol"

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About Todd O.
Vehicle
2002 Dodge Durango
I use my vehicle for
communting
 
Nascar Truck Sound!!

Posted on 03/07/2007 by Kenneth T. (Parlin,NJ)

"This american thunder exhaust work great with my 'Bassani Headers. It has a destinctive Deep Throaty sound to it, as if a nascar truck is passing you buy. This is one for the Hemi Trucks. All I can say is awesome!!"

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About Kenneth T.
Showing 76 - 100 of 266 Customer Reviews
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