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

  (345)
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Perfect for a 2004 F150

Posted on 05/20/2009 by Ryan T. - 2004 Ford F-150 (Broad Top,PA)

5 of 5 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"The exhaust system is awesome I put it on and cut off both big cats and it sounds beautiful."

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About Ryan T.
Vehicle
2004 Ford F-150
I use my vehicle for
Everything
 
loader than expted

Posted on 05/19/2009 by Bob B. - 2008 Dodge Ram (Phoenix,AZ)

3 of 3 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"sounds great kind of strange how split tail pipe goes in front of rear end this will hit spare tire when lowered but seams to work real nice"

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About Bob B.
Vehicle
2008 Dodge Ram
 
1996 Chevy Z71

Posted on 05/16/2009 by Alexander N. - 1996 Chevy C/K 1500 (Summerville,SC)

1 of 1 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"the growl sounds awesome when you start it up and accelerate, aslo a noticable diff. in fuel economy great product!"

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About Alexander N.
Vehicle
1996 Chevy C/K 1500
I use my vehicle for
commuting
 
Good sounding exhaust improved milage

Posted on 05/06/2009 by Steve C. - 2004 Ford F-150 (Lexington Park,MD)

3 of 3 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"I installed this exhaust system by myself in about 2 hours with the aid of a lift. A dissapointment was when I opened the box my series 40 muffler was Grey not black as advertised. In addition to the exhaust I also installed the VOLANT intake system, so my V8 5.4L Ford F-150 could breathe. Im up about 4.5 MPG more than before, and a more noticeable "gitty up" when I hit the gas, also a decent rumble on the road. I just wish it was a little louder but its good for now. Other than that I am thoroughly satisfied with the way my purchase was handled, thanks autoanything."

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About Steve C.
Vehicle
2004 Ford F-150
I use my vehicle for
Daily Driver!!!
 
very surprised

Posted on 05/01/2009 by Robert W. - 2002 Dodge Durango (Holyoke,MA)

2 of 2 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"i have installed other brands of exhaust systems on vehicles that i have had in the passed. i had read the reveiws and researched them and they all say on how much power and how much fuel they will save you. they didnt seem to make a big difference. this flowmaster surprised me. i did lose some power on the low end but it does come 2 life when you get on it. and oh yes..... i did gain on gas mileage. went from 13 around town to 15 mpg!!!!!!"

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About Robert W.
Vehicle
2002 Dodge Durango
I use my vehicle for
commuting,tarvel,fishing------towing the boat
 
Great Exhaust

Posted on 04/23/2009 by Stancil B. - 2008 Ford F-150 (Manhattan,KS)

4 of 5 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"This is a good quality, great sounding system. I recommend it to anyone looking to upgrade their exhaust. I got it done at a local shop as I wanted to have it tacked."

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About Stancil B.
Vehicle
2008 Ford F-150
 
Tacoma with K&N, Poweraid Throttle body spacer, and Flowmaster

Posted on 04/22/2009 by Tyler B. - 2009 Toyota Tacoma (Canaan,NY)

3 of 3 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"Great exhaust, very easy to install and good quality, the only thing is it is a little to quiet. It has pretty good tone, but it could be louder."

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About Tyler B.
Vehicle
2009 Toyota Tacoma
 
Paul Tampa, Fl. Flowmaster American Thunder on 08-F150

Posted on 04/20/2009 by Paul P. - 2008 Ford F-150 (Wimauma,FL)

5 of 5 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"I ordered this system based on other consumer reviews I saw on various websites. The kit arrived very quickly and in perfect condition. My son and I installed the kit in about 2 hours and everything fit as shown on the instructions. The sound is awsome and the power delivery was noticeibly more linear with a good punch in the mid to hi RPM range. If you keep your driving habits the same you will notice improvement in your fuel mileage. My truck is an 08 F-150 with the 5.4 liter V-8 and I gained 2 mpg on the highway and just over 1 mpg in mixed driving conditions. This kit is great I recommend it for anybody."

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About Paul P.
Vehicle
2008 Ford F-150
I use my vehicle for
Everyday driver 750 miles per week.
 
2000 tundra

Posted on 04/16/2009 by Ian L. - 2000 Toyota Tundra (Moravia,NY)

0 of 1 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"it went in easy :) we had some problems with the instructions not very clear but when we put them down it all came together :D sounds nice not too loud at idle sounds very good when you lay in to it :) have fun with the resonator i had that fall of because i didn't get it on far enough its ok now"

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About Ian L.
Vehicle
2000 Toyota Tundra
 
Flowmaster Exhaust System

Posted on 04/07/2009 by Ronald L B. - 1967 Chevy Camaro (Palmyra,MO)

3 of 3 people found the following review helpful.

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Ease of Installation
Price/Value
Quality

"I recently installed a duel exhaust system on my 1967 Camaro SS installation was fairly simple with the directions that were provided with my order. My order was shipped very quickly. after installing the system I started my camaro and was very pleased with the sound of the system. I would recommend this system to anyone restoring a classic automobile. I would also recommend ordering this system from autoanything they were very helpful and knowledgeable about the system. The quality and sound of the system is very exellent."

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About Ronald L B.
Vehicle
1967 Chevy Camaro
I use my vehicle for
Show and Pleasure