Flowmaster Exhaust Systems - American Thunder

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Flowmaster American Thunder Exhaust Systems
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Product Info

Features

  • Flowmaster custom makes the American Thunder Exhaust System for your auto
  • Boldly booms the famous Flowmaster tone at full volume
  • 5% - 10% power gains on average, and helps save gas
  • Powered by one of Flowmaster’s track-proven chambered mufflers
  • CNC mandrel-bent pipes for faster exhaust flow
  • Aluminized steel construction
  • Comes with all mounting hardware and instructions
  • 1-year warranty

Description

Some things just scream “American.” Baseball. Apple pie. Action movies. And, the automotive accessory that most represents the ol’ Red, White and Blue is the Flowmaster American Thunder Exhaust System.

If you’re looking for a whimpering, quiet little exhaust system, then the American Thunder is not for you. These pipes pump out Flowmaster’s distinct growl at full volume. But that’s not all! A hearty bump in horsepower, a few extra MPGs and an aggressive look all come along with your American Thunder Exhaust System.

Never one-size-fits-all, Flowmaster custom-makes your kit for a perfect fit on your ride. And, all the bends are made using mandrels for smooth, unrestricted flow.

Available in multiple configurations, the American Thunder comes single or dual, as well as side- or rear-exit. And, every kit comes powered by Flowmaster’s renowned chambered muffler, all mounting hardware, and install instructions. 1-year warranty.

Average Customer Rating

  (318)
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2008 Dodge 2500 Ram

Posted on 12/24/2008 by Jon M. (Richmond,RI)

1 of 1 people found the following review helpful.

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"That was the easiest exhaust system that I have ever installed, just follow the instructions and it fit perfect, Thank you"

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About Jon M.
 
Installation Process

Posted on 12/23/2008 by Ford L. - 1997 Chevy Silverado (New Braunfels,TX)

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"The system was installed on a 1997 Chevy K1500 with regular cab and short bed. Overall, fit and match were very good. Installation instructions were excellent. A few areas could use slight improvement: (1) Muffler rear hanger; There was a three inch mismatch left to right, causing the rubber hanger to be at an excessive angle. (2) There was excessive gap between the I.D. / O.D. of muffler outputs and the tail pipes, necessitating a great deal of clamp tightening and peening of the metal in order to achieve a tight fit. (3) Tail pipe hangers; There was a two inch mismatch fore & aft, causing the rubber hangers to be at a 45 degree angle. None of this was insurmountable, and installation overall was pleasant. The hardest part was removing the factory flange nuts where the muffler attaches to the exhaust pipe. This is in no way Flowmaster's fault or responsibility though. However, it wouldn't hurt if new nuts were provided with the kit."

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About Ford L.
Vehicle
1997 Chevy Silverado
I use my vehicle for
Work and pleasure.
 
Head Turning For Sure!!!

Posted on 12/22/2008 by Judy K S. (Middle River,MD)

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Ease of Installation
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"American Thunder Super 40's are the way to go & it was everything I was hoping for. Me and a friend installed it just under 2 hours. The sound that I'm getting from it is that patented Mustang deep throaty sound that's turning heads. The delivery service was very fast to say the least. It was sitting on my porch days before it was suppose to be there. Thanks AutoAnything!!!"

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About Judy K S.
I use my vehicle for
commuting, travel....
 
Flowmaster-American Thunder Dual Exhuast

Posted on 12/13/2008 by Dustin N. (Waupun,WI)

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Quality

"I put this system on my 99 sierra w/4.8L and i love it. it sounds amazing and looks great too."

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About Dustin N.
 
99 silverado DOR/S cat back kit

Posted on 12/03/2008 by Shelby M. - 1999 Chevy Silverado (Quinter,KS)

2 of 2 people found the following review helpful.

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Price/Value
Quality

"I am pleased with the quality of the flowmaster exhaust. It didn't fit as well as it needed to, one pipe had too much bend in it and rubbed against the rear end until i put an extension in the pipe. Other the installation went well and the kit was pretty self explanatory but did come with good instructions. The only other thing that wasn't perfect was that i did have to take off my spare tire even though they said i wouldn't, that was only beacuse of the issue with the clearance of the rear end. Over all the quality was good and i love the flowmaster sound even if it wasn't quite as loud as i would have liked."

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About Shelby M.
Vehicle
1999 Chevy Silverado
I use my vehicle for
everyday travel on pavement and dirt roads
 
american thunder exhaust

Posted on 11/29/2008 by Harold J. - 2005 Nissan Titan (Cincinnati,OH)

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Quality

"the exhaust system i purchased is a little disapointing it does not have the rumble i was looking for i wish i would have purchased the magnaflow exhaust after hearing it on my friends nissan titan sounds much better then the flowmaster i purchased. harold cincinnati,ohio"

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About Harold J.
Vehicle
2005 Nissan Titan
 
Needs to be louder

Posted on 11/28/2008 by Jean S. - 1999 Dodge Ram (Grand Forks,ND)

1 of 1 people found the following review helpful.

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Quality

"Overall the exhaust is excellent. The muffler needs to be changed to the 40 series so its louder The 50 series is one of the quites that Flowmasters makes. So plan to order a $100 40 series if you want it loud..."

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About Jean S.
Vehicle
1999 Dodge Ram
I use my vehicle for
Pure Fun
 
Get loud pipes for 01' COBRA!

Posted on 11/14/2008 by Michael B R. - 2001 Ford Cobra (Charlotte,NC)

1 of 1 people found the following review helpful.

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Price/Value
Quality

"System arrived very timely and was pretty easy to self install. Just make sure that you measure everything before making everything tight. One tail pipe stuck out farther than the other but an adjustment quickly fixed that. I love Flowmaster mufflers and they are the only performance mufflers that I buy. My 05' F-150 has them and my previous COBRA had them too. Looks great and sounds better. This is not the kit to buy if you want to sneak up on people. You WILL be heard and I love that!!!"

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About Michael B R.
Vehicle
2001 Ford Cobra
I use my vehicle for
Going fast and looking good while doing it!
 
08 F150

Posted on 11/14/2008 by Lorrie H. - 2008 Ford F-150 (Florence,SC)

3 of 3 people found the following review helpful.

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Quality

"Easy installation, sweet deep tone that doesnt rattle your head inside the cab , fair price! Customer service very helpful and friendly and understand."

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About Lorrie H.
Vehicle
2008 Ford F-150
I use my vehicle for
commuting,travel and fishing.
 
my flowmaster

Posted on 11/08/2008 by Richard F O. (Littleton,CO)

1 of 2 people found the following review helpful.

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Quality

"It fits great,...looks good,.....and it vsounds awesome."

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About Richard F O.