Flowmaster Exhaust Systems - American Thunder

(1999 Ford Mustang | Change Vehicle)

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Flowmaster American Thunder Exhaust Systems
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Submodel:
Fits the GT, MACH1 and Bullitt 4.6L V8
This product is not available for the 1999 Ford Mustang Fits the GT, MACH1 and Bullitt 4.6L V8 (Change Vehicle) at this time.
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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

  (382)
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'99 Mustang GT

Posted on 07/15/2008 by Danny G. - 1999 Ford Mustang (Timonium,MD)

2 of 3 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"The install wasn't too bad my old exhaust didn't want to come off so we had to cut it out which took some time. Everything fits and sounds great."

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About Danny G.
Vehicle
1999 Ford Mustang
I use my vehicle for
everything
 
My new 2002 Mustang GT

Posted on 09/28/2009 by Richard W. - 2002 Ford Mustang (Dorchester,SC)

1 of 1 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"Wow ! What a differance ! Love it, was so easy to install... I had gone to my local parts store "A" they sent me home with a trunck full of parts, none of which fit...I took it all back after hours of work. Ordered this system from ya'll, it arrived in less than 48 hours, and took less than an hour to completly install by my self... AND IT SOUNDS GREAT, Thank You"

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About Richard W.
Vehicle
2002 Ford Mustang
I use my vehicle for
Pure Pleasure !
 
MUSTANG GT

Posted on 10/25/2008 by Edward B. - 2007 Ford Mustang (Freehold,NJ)

3 of 4 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I installed them in my gurage in about an hour without jacking the car up.I like the sound it is louder than stock but not to loud."

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About Edward B.
Vehicle
2007 Ford Mustang
I use my vehicle for
pleasure
 
4.6 GT

Posted on 07/11/2008 by Kaye E. - 2007 Ford Mustang (Polkton,NC)

7 of 8 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"I am really enjoying the Flowmasters that I received. They have great, deep tone, that signature Flowmaster sound. Shipping time was amazing fast. I ordered one morning and they were on my doorstep the next. I will certainly be doing business with this company again."

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About Kaye E.
Vehicle
2007 Ford Mustang
I use my vehicle for
recreational driving
 
best cat-back system by far

Posted on 03/31/2008 by Alex U. - 2000 Ford Mustang (Ocean City,MD)

6 of 9 people found the following review helpful.

Appearance
Ease of Installation
Price/Value
Quality

"gotta love that flowmaster rumble. sounds amazing looks nice. what more can you ask for."

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About Alex U.
Vehicle
2000 Ford Mustang
 
Great Mufflers

Posted on 02/13/2008 by Gerard B. - 2005 Ford Mustang (Oxon Hill,MD)

6 of 12 people found the following review helpful.

"The sound was just what I was looking for."

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About Gerard B.
Vehicle
2005 Ford Mustang
I use my vehicle for
Driving
 
2003 SVT Mustang Cobra

Posted on 12/28/2007 by John B. - 2003 Ford Mustang (Arroyo Grande,CA)

5 of 6 people found the following review helpful.

"Good exhaust. Easy to install. Great sound, though a little louder in the car than I'd hoped for."

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About John B.
Vehicle
2003 Ford Mustang
I use my vehicle for
Commuting and fun
 
Great System!

Posted on 11/22/2007 by Fuad M. - 2005 Ford Mustang (San Carlos,CA)

2 of 3 people found the following review helpful.

"This really made a huge difference on my mustang, it sounds soooo much better. It also was fast shipping, i would recommend this product. A+"

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About Fuad M.
Vehicle
2005 Ford Mustang
I use my vehicle for
everything
 
Nice sound!

Posted on 11/10/2007 by Ron H. - 2003 Ford Mustang (Mesa,AZ)

1 of 2 people found the following review helpful.

"I was extremely happen with the sound of this system!"

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About Ron H.
Vehicle
2003 Ford Mustang
I use my vehicle for
Commuting
 
mustang

Posted on 10/20/2007 by Marilyn L. - 1990 Ford Mustang (Holbrook,NY)

2 of 2 people found the following review helpful.

"i love them my car is much louder and i deffinatly felt the power increase"

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About Marilyn L.
Vehicle
1990 Ford Mustang
I use my vehicle for
everyday use