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

  (298)
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Excellent exhaust system

Posted on 02/17/2006 by David H. (Las Vegas,NV)

"Increased my power and milage in one shot. Easy to install, and a very nice sound. Wonderful website to deal with, very fast shipping"

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About David H.
 
Flowmaster

Posted on 02/16/2006 by Matthew S. (Natick,MA)

"The pipes came faster than expected.. they sound great but the only thing that i had a problem with is my spare tire.. i cant leave it under the truck anymore.. but other than that they sound awsome.. nice deep rumble."

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About Matthew S.
 
2003 Dodge Ram 5.7L

Posted on 02/14/2006 by Matthew C. (Jacksonville,FL)

"Great System! Saved over 200 dollars on it, compared to the pricing by Flowmaster. Easy installation too! Totally happy!"

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About Matthew C.
 
love that sound!

Posted on 02/11/2006 by Brian Z. (Cottage Grove,MN)

"I recently purchased the flowmaster muscle truck system after my old exhaust system rusted off. I used to run the original 40 series delta flow muffler before this system. The super 40 series definately has a louder lower tone. Great system so far, lets see how it handles the Minnesota winters."

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About Brian Z.
 
Awsome sound

Posted on 02/08/2006 by Louis D. (Adams Basin,NY)

"Love the sound , and it took me about 3 hours start to clean-up to install the system ."

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About Louis D.
 
Nice

Posted on 02/05/2006 by Michael A. (Memphis,TN)

"I wish the tips were at least 3""

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About Michael A.
 
67 Camaro Exhaust

Posted on 02/03/2006 by Brad H. (Long Valley,NJ)

"This is a quality system and I noticed an improvment in performance the second I hit the gas. It sounds great as well. Its weak point is that it hangs to low. The 2 1/2" pipes go under the E brake cables reducing ground clearance. Hardware and instructions are excellent except for the clamps. I broke 2 clamps tightening them up. Reccomend thicker clamps. Had to order special front pipes from another company to reach manifolds. these do not go all the way to manifolds just to headers."

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About Brad H.
 
Silverado 1500HD

Posted on 02/02/2006 by Todd L. (Wilburton,PA)

"Looks real good, and it lined up with the trucks factory hangers. Installation was very easy, had joints welded. A little louder in the cab than I wanted, but overall nice system."

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About Todd L.
 
Superior

Posted on 02/02/2006 by Joseph C. (Wilkes Barre,PA)

"finally a product that says all and does all !!"

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About Joseph C.
 
Flowmaster American Thunder Exhaust System - Dual Rear Exit

Posted on 01/27/2006 by Paul G. (Elverson,PA)

"I installed the Flowmaster exhaust on my 5 speed, 6 cyl. 2002 Pontiac Firebird. It sounds great. I enjoy hearing the low rumble of the exhaust when idling and cruising. I also added a K&N air filter. There is a noticeable increase in acceleration in first & second gear. I would recommend the Flowmaster exhaust and K&N filter to everyone. P. G."

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About Paul G.
 
Very Pleased!!! Flowmaster American Thunder Exhaust

Posted on 01/27/2006 by John P. (Glen Rock,PA)

"I had this system welded together and put on my 2002 Dodge Ram. It sounds and performs very well. I have noticed considerable increase in power and fuel milage (appx 2 miles more per gallon). This is wonderfull since my 5.9L was only getting around 11 MPG, now I am around 13MPG. Thanks Flowmaster!"

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About John P.
 
you got to get one of these

Posted on 01/15/2006 by Braxton W. (West Blocton,AL)

"i installed this kit on a 2005 F150 5.4l great sound and fit. I would recommend autoanything to anyone"

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About Braxton W.
 
GREAT SOUND

Posted on 01/11/2006 by Tyler S. (Ava,MO)

"I put it on a 2002 dodge with a 360. It has a nice deep sound to it, wich I love, But it could be a little louder. Easy to install new parts, but the problem is getting the old exhaust off!! Once I got old off the new went on in 30 minutes, And if you cant stand exhaust leaks GOT TO GET IT WELDED!!! Also the exhaust tips are a little small, but they are better than none at all. And they were not joking when they said that it helps with gas milage and horse power. I've noticed a great increase in milage and thats with my foot in it alot and a little more power. Over all the great sound and milage increase I get makes up for all the things I didn't like about it."

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About Tyler S.
 
Flowmaster Exhaust

Posted on 01/11/2006 by Michael J. (Fallon,NV)

"I love mynew flowmaster exhaust system. I have noticed a significant increase in power and fuel economy. It sounds great too, makes me feel like a teenager again!"

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About Michael J.
 
Could be louder and manufactured a little better.

Posted on 01/06/2006 by Norton J. (Orlando,FL)

"Exhaust came to my home amazingly fast. Took more time to remove the stock system. Flowmaster was on in about 50 min. Did notice some paint chipping away on the welds around the mufflers. I was also expecting a more sound when I fired it up. I give the exhaust a B-."

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About Norton J.
 
Flipped4focus

Posted on 01/06/2006 by Jeremy O. (Fort Wayne,IN)

"Great exhuast, fit on perfect sounds nice on RS Camaro."

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About Jeremy O.
 
Great Sound, Easy Install, Worse Gas Mileage

Posted on 01/05/2006 by Michael R. (Peoria,IL)

"Arrived Super Fast, 45 minutes to install -- very easy with only 2 bolts and 5 clamps required...Sounds good -- not too loud or too soft, just the right growl...Only negative I have seen is reduced MPG for my 2005 Silverado -- lost about 1 MPG over stock exhaust making the same trips at teh same speeds..."

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About Michael R.
 
NOT LOUD enough

Posted on 01/05/2006 by Larry G. (Hollywood,MD)

"Cut off the old and had a friend weld on the new ,would liked to have larger diamiter tips (got the S/S look good) but not big enough, anyway nice product but not loud enough maybe I can't hear it because of the 8' bed....??"

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About Larry G.
 
Great installation and sound ! ! ! ! ! ! ! ! ! ! !

Posted on 01/04/2006 by Ray D. (Marlboro,MA)

"This exhaust system was so easy to install and took about one hour and sounds GREAT!!!!!!!!!! Was delivered sooner than expected which was great. I would do it all over again. If i need any thing else i wouln't hesitate to order from AutoAnything for my parts!!!!!"

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About Ray D.
 
Great Product!

Posted on 01/04/2006 by Frank B. (Palm Coast,FL)

"The installation went very smooth. The Fit and Finish was excellent. The sound brings me back to my early muscle car days."

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About Frank B.
 
EXCELLENT!!

Posted on 12/31/2005 by Charles R. (Daphne,AL)

"Super fast shipment!! Installed in about 3 hours looks and sounds great!! Not too quiet and not too loud. The hardest thing was removing the stock exhaust. Along with a cold air intake I have noticed about a 2-3 more MPG and instand HP boost. Autoanything is great and I will defineately do bussiness with again!!"

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About Charles R.
 
Present for my mother

Posted on 12/30/2005 by Clint B. - 2001 Toyota Tundra (St. Johns,AZ)

1 of 1 people found the following review helpful.

"First of all Autoanything had the best deal on the net that I saw for this Tundra System and there shipping was lighting fast! I came home from graveyards on Christmas Eve morning Jacked my moms truck and slapped the system on in 1.5 hrs. A shot of WD-40 on the hangers and rubber mounts made taking and putting the system on quik. I then took her Tundra back home. When she got into her Tundra she fired it up heard it got scared and turned it off, looked around and saw the Flowmaster mufflers. Then the scaredness turned into joy. Funny how that works. She left a message on my phone thanking me and telling her story with her voice breaking up from time to time. The best Christmas present experiance we shared. Thanks I will buy from autoanything again. CJ"

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About Clint B.
Vehicle
2001 Toyota Tundra
I use my vehicle for
everything.
 
Superb

Posted on 12/29/2005 by Michael C. (Kenna,WV)

"The exhaust for the Dodge Ram 1500 Hemi brings it to life. The sound is awesome."

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About Michael C.
 
Nice Flow

Posted on 12/16/2005 by Gary R. (Rockton,IL)

"I installed the exhaust on a 99 Silverado. It sounds awesome and went together easy. I would suggest welding the seems. My tail pipes were sliping down even though I had the exhaust clamps very tight. The only bad thing is the space between the drive shaft and muffler, only about a half inch on my truck. Great sounding system though."

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About Gary R.
 
awesome rumble

Posted on 12/15/2005 by Roger B. (Austin,PA)

"i installed this system on my 06 silverado ext.cab with the 5.3 HO.V-8 sounds great going up through the gears.has a noticable performance increase combined with a k&n air filter.autoanything shipped this system to my door within 48 hours and i will definitely purchase from them again .great online shopping site."

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About Roger B.
I use my vehicle for
every day use
Showing 226 - 250 of 298 Customer Reviews
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