Mustang Parts › Mustang Exhaust › 10-14 Mustang Exhaust › 10-14 Mustang Axleback Exhaust › Flowmaster American Thunder Classic Axle-Back Exhaust (13-14 GT, GT500) // Flowmaster 817588

Flowmaster American Thunder Classic Axle-Back Exhaust (13-14 GT, GT500)

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About Flowmaster

Flowmaster, Inc. is a specialty performance aftermarket exhaust parts manufacturer. It was founded in 1983 by Ray Flugger. Originally created to minimize California Sprint Car engine noise without sacrificing performance, Flowmaster ...... READ MORE

Product Features

Aggressive Flowmaster Super 44 Series Sound
Polished stainless steel 4" tips
Durable 409 Stainless Steel Construction
Includes two Flowmaster mufflers
Fits 2013-2014 GT and Shelby GT500 Mustangs

Description
Specs
Installation
IN THE BOX
Fitment

Classic Flowmaster Sound. Give your 2013-2014 GT or GT500 that unmistakeable Flowmaster sound with a nice power boost with the American Thunder Axle-Back exhaust system. This system improves exhaust flow using Flowmaster's patented chambered muffler design for that throaty, aggressive exhaust tone your high powered Pony deserves.

Quality Construction. Constructed from durable 3" 409 stainless steel tubing for its resistance to corrosion, the Flowmaster axle back features two special 5" X 10" chambered Super 44 Series Flowmaster mufflers with 4" diameter polished stainless steel tips for muscle car looks and sound. As an added bonus the tip is embossed with the "Flowmaster" logo for true custom styling.

Application. This Flowmaster American Thunder Axle-Back exhaust system is designed to fit the 2013-2014 5.0 Mustang GT and 2013-2014 5.4L Shelby Mustang GT500 for both great looks and great sound.

Mustang Fitment: 2013, 2014 Details >>

Axleback Exhaust Specifications

Piping Material:	409 Stainless Steel	Tip Material :	Polished Stainless Steel
Piping Size:	3"	Tip Size:	4"
Muffler Type:	Chambered	Fitment:	2013-2014 GT & 2013-2014 GT500

Resources:

>> Understanding Mustang Exhaust Systems

Installation Time:

(approx) 1 Hour

Difficulty Level:

Simple installation for anyone.

What's in the box?

(2) Mufflers
(2) 3/8" Hanger Keepers

Manufacturer Installation Guides:

How to Install a Flowmaster American Thunder Classic Axle-Back Exhaust on Your 2011-2012 Mustang GT & GT500

Customer Submitted Installation Guides:

No guide available for this part yet. Find out how to get up to $200 for writing an install guide!

What's in the box?

(2) Mufflers
(2) 3/8" Hanger Keepers

Fitment:

GT 13, 14
GT500 13, 14
Boss 13

Won't fit? Add an exception »

Flowmaster 817588 Reviews

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I'm pretty certain this is the best shopping experience I've ever had. I found what I wanted on AmericanMuscle.com, then did some price shopping and ended up coming back and order from them because they had the lowest price AND free shipping too. I honestly look forward to spending more money with American Muscle. They have customer submitted photos in addition to their great product photography as well as installation guides from users and manufacturers. Their videos are honest and incredibly useful. I can't think of anything else I'd like to see from them.

Ryan B

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DanMarketing

All my other cars were all-wheel drive, my brother had an 04 cobra and i wanted to compete and beat him with naturally aspirated so i went with a mach1 - and beat him. Now he works here too! I got lucky and was able to find one of the...

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