2015-17 Ford Mustang Flowmaster American Thunder Axle Back Exhaust Kit GT Fastback - S550 by Flowmaster

Mustang Flowmaster American Thunder Axle Back Exhaust Kit (15-17) Fastback


We no longer carry the 2015-17 Ford Mustang Flowmaster American Thunder Axle Back Exhaust Kit GT Fastback - S550.
Check out 2015-17 Mustang Top Performance Mods for an updated selection.
Details   |  Description   |  Reviews
  • Flowmaster Mustang American Thunder Axle Back Exhaust Kit (2015) GT Fastback 5.0 817710
Mustang Flowmaster American Thunder Axle Back Exhaust Kit (15-17) Fastback

Add classic Flowmaster sound to your new 2015-2016 Mustang GT with this American Thunder axle-back exhaust!

Item #FLO-817710
MPN# 817710

Everyday Low Price: $499.00


FREE SHIPPING!

We no longer carry the 2015-17 Ford Mustang Flowmaster American Thunder Axle Back Exhaust Kit GT Fastback - S550.
Check out 2015-17 Mustang Top Performance Mods for an updated selection.



Made in the USA

Product Description

Classic Flowmaster Sound!
Give your new 2015-2016 Mustang GT an aggressive exhaust sound with Flowmaster's American Thunder axle back exhaust kit! This kit gives your S550 Mustang the muscle car sound and performance you expect from Flowmaster. This kit is constructed of 409 stainless steel tubing that is powder coated black and ends up in a pair of 4" polished stainless steel tips that are sure to look great coming out of your rear valance. The kit is designed for an easy installation and includes all necessary parts and hardware for install to get your 2015-2016 Mustang sounding great in no time!

Fitment Note
Will not fit the convertible model 2015-2016 Mustang.

Application
-Fits 2015-2016 Mustang GT Fastback

Product Reviews (4)

5 star rating
5.0 out of 5 stars - based on 4 reviews
5 Stars   Great deep tone
By on 2/23/2015
My flow master American thunder axle back system for my 2015 Mustang GT arrived in perfect condition and the fit and finish and sound is exactly what I was looking for!! Deep and smooth and the cold idle is sweet!!

Yes, I would recommend this item to a friend!


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5 Stars   Awesome Sound Great Price!
By on 6/19/2015
Installed these on my 2015 GT with the Ford racing X pipe. The sound is Awesome!! I have always had Flowmaster in my Mustangs and glad I had the American Thunder system installed this time as well. When you are cruising you have no heavy drone noise but when you put your foot in it the car sounds mean.

Yes, I would recommend this item to a friend!


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5 Stars   Careful Kids!
By on 2/24/2015
They don't fit the GT convertible. I found out the hard way. They had to be custom fit. Look and sound great.

Yes, I would recommend this item to a friend!


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5 Stars   Awesome sound!
By on 9/30/2015
I just installed these in my garage. Install was easy, fit is perfect. Once I tightened the clamps and all the brackets, I lowered the car and that Flowmaster deep tone and rumble put a smile on my face. I have no drone what so ever. Wife really loves it. Not too loud but once you get on it, heads turn. Thanks LMR. Great customer service as always.
I done all my shopping with you all since 2008. Great job and I will be ordering more parts in the near future.

Yes, I would recommend this item to a friend!


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Vehicle Applications

Ford Mustang - 2015 (15) - 2016 (16) - 2017 (17)


About This Brand


Flowmaster
Flowmaster - The Exhaust Technology Company
Flowmaster operates the only exhaust Research & Design facilities of its kind in the world, centered around the SuperFlow SF-7100 engine dynamometer complete with E.C.A. (engine cycle analysis) equipment and also SuperFlow chassis dyno's.

Through use of these dyno's, Flowmaster's engineering staff can track the complete engine cycle in millionths of a second and can obtain exact technical data of each degree of cam rotation, from induction to the tip of the exhaust system, while also showing the power numbers that really matter, the power numbers "to the ground."

Flowmaster also utilizes Spectrum Analyzers to fine "tune" the sound of each of the eleven different series of mufflers that Flowmaster currently offers, both for peak performance and just the right sound levels and tones. Flowmaster's dedication to quality is what makes them the exhaust industry leader for Latemodel Mustangs and SVT Lightnings!

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