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

  (384)
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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.
I use my vehicle for
Daily Driver
 
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.
I use my vehicle for
Everything
 
NOT LOUD enough

Posted on 01/05/2006 by Larry G. - 1999 Dodge Ram (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.
Vehicle
1999 Dodge Ram
I use my vehicle for
junk runs, playing in the SNOW, pleasure
 
Great installation and sound ! ! ! ! ! ! ! ! ! ! !

Posted on 01/04/2006 by Ray D. - 1998 Dodge Ram (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.
Vehicle
1998 Dodge Ram
I use my vehicle for
Pulling My 40' 5th Wheel Toy Hauler
 
Great Product!

Posted on 01/04/2006 by Frank B. - 2005 Ford F-Series (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.
Vehicle
2005 Ford F-Series
I use my vehicle for
all
 
EXCELLENT!!

Posted on 12/31/2005 by Charles R. - 1998 Dodge Ram (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.
Vehicle
1998 Dodge Ram
I use my vehicle for
COMMUTING
 
Present for my mother

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

3 of 3 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. - 2005 Dodge Ram (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.
Vehicle
2005 Dodge Ram
I use my vehicle for
family
 
Nice Flow

Posted on 12/16/2005 by Nick 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 Nick R.
I use my vehicle for
Everything its a truck!
 
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
 
2004 dodge ram

Posted on 12/08/2005 by Ryan H. - 2005 Dodge Ram (Pottstown,PA)

"Exhuast for very easy to install. Very happy with the exhuast."

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About Ryan H.
Vehicle
2005 Dodge Ram
I use my vehicle for
commuting
 
flowmaster

Posted on 12/08/2005 by Ray D. - 2008 Dodge Ram (Brookhaven,PA)

"big boost all around ,2mpg approx.nice throaty sound and 2 days to ship & 45 minutes to install."

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About Ray D.
Vehicle
2008 Dodge Ram
 
The Thunder Down Under

Posted on 12/05/2005 by Michael M. (Tulsa,OK)

"First off I would just like to say that the overall look of the system is far beyond what I exspected. It tucks very nicely under the truck and totally cleans up the look of the truck from the rear. None of those stupid looking exhaust tips here fellas. The sound is very sporty with a very deep tone. At lower RPM levels it is real throaty sounding, but at 70mph you can barely here it, which is very good, so you are not listening to the constant rumble. The overall sound of the system is the best I have ever heard on a truck and all my friends will agree. Not to mention that I noticed a diffrence in torque and throtle response right after the install. The install is a piece of cake and was easily installed within an hour. I highly suggest this system to those do-it-yourselfer's. It truly is the Thunder Down Under."

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About Michael M.
I use my vehicle for
All of the Above
 
Legendary sound/ tight fitment

Posted on 11/24/2005 by Ralph S. - 2003 Subaru WRX (Iron River,MI)

"The muffler really has that "Flowmaster" legendary sound. There is one fitment issue however, I had to grind a little on the crossmember so it wouldn't rub.I used car ramps on my garage floor, set aside two hours for install."

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About Ralph S.
Vehicle
2003 Subaru WRX
I use my vehicle for
commuting and as a rally chaser.
 
A bit loud

Posted on 11/24/2005 by James W P. - 2005 Ford F-150 (Arlington,VA)

3 of 3 people found the following review helpful.

"My order came through quite quickly and installed as easily as I expected. I am concerned about the noise level in my F150 Lariat -- at around 1900 to 2100 RPM, the resonnance gets too loud to hear on the phone or listen to the stereo -- may look to change out the muffler piece with something a bit calmer -- however my 25 year old son loves the sound."

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About James W P.
Vehicle
2005 Ford F-150
I use my vehicle for
work and family activities
 
Flowmaster American Thunder Exhaust System - Single Rear Exit

Posted on 11/22/2005 by Allan R. - 1991 Acura Integra (Kentfield,CA)

1 of 3 people found the following review helpful.

"Decent tone, noise is legal where I live in CA. Farts a little but only during downshifts."

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About Allan R.
Vehicle
1991 Acura Integra
 
great buy

Posted on 11/22/2005 by William M. - 2004 Dodge Ram (Constantia,NY)

"My exhaust system was easy to put on , with the right tools and a lift the old system was off and the flowmaster was on in about a half hour, but even without a lift its a very easy install , I got the system in 2 days " FAST DELIVERY " It looks good and sounds great not to loud and not to quiet. I love the powerfull flowmaster sound .... thanks Auto Anything"

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About William M.
Vehicle
2004 Dodge Ram
I use my vehicle for
commuting,travel,family fun
 
Bad as in Good

Posted on 11/18/2005 by Ronald J. - 2005 Ford F-150 (West Haven,CT)

1 of 1 people found the following review helpful.

"The exhaust I purchased made my '05 F150 sound grumbly and mean. Perfect. Auto Anything had the kit at my house within 24 hours. I installed it within 2 hours. I say buy it...you'll have a beaming smile soon after."

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About Ronald J.
Vehicle
2005 Ford F-150
I use my vehicle for
everything.
 
It's great

Posted on 11/16/2005 by Scott C. (Harpswell,ME)

1 of 1 people found the following review helpful.

"I love this exhaust. It doesn't only sound good, but it performs good as well. I had the old exhaust out and the new exhaust in within an hour. Much easier then expected."

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About Scott C.
I use my vehicle for
everything
 
I liked it but....

Posted on 11/10/2005 by Dustin L. - 2002 Dodge Ram (Gerlaw,IL)

1 of 1 people found the following review helpful.

"The system sounds good at low rpm and even better at high rpms, but the day after I installed it one of the clamps broke amd I almost lost my muffler. Other than that its a really good system, it took me longer to take the factory exaust off than it did to install this system. The only thing I would change on it is the tips are too small, and get higher grade clamps."

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About Dustin L.
Vehicle
2002 Dodge Ram
I use my vehicle for
commuting, family activities, towing, travel, hauling, typical truck duties
 
Excellent System

Posted on 11/09/2005 by Benjamin J. (Centralia,WA)

"This system is very easy to install I would recomend it to anyone.Great fit great sound & looks excellent.I had lot of friends ask about this system & I highly recomend it"

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About Benjamin J.
I use my vehicle for
Everyday use
 
Great Exhaust

Posted on 11/08/2005 by Ronald C. (Avon,IN)

"This kit came with everything I needed and was super simple to install, it fit like a glove. Thanks Flowmaster and AutoAnything for the great product."

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About Ronald C.
I use my vehicle for
general
 
Familiar with Flowmaster Products

Posted on 11/07/2005 by Larry C. (Blanchester,OH)

1 of 1 people found the following review helpful.

"This is a replacement for a previously installed similar system. Very Satisfied. Sounds great! There is a noticable performance improvement with this product. Very easy to install. Autoanything provides a huge variety of products. Will shop here again. Would love to receive a product catalogue in the mail."

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About Larry C.
I use my vehicle for
pleasure and daily driving
 
Finishing touch to '05 Silverado

Posted on 11/02/2005 by Michael K. (Brimfield,MA)

"Great sound and super easy installation. I was done in less than an hour, including removal of the stock system without any cutting."

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About Michael K.
I use my vehicle for
commuting, weekend chores
Showing 326 - 350 of 384 Customer Reviews
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