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American Racing Headers Pure Thunder Axle-Back Exhaust (15-17 GT Fastback)

Market Price $1,200.99 You Save 13% ($156.24)
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  • Item 389165
  • MPN# MTC5-15212AXBK

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Features, Video & Details

  • Deep Rich Muscle Car Tone
  • Pure Thunder Series Mufflers
  • Stainless Steel Construction
  • 2.5" Mandrel-Bent Tubing
  • 4" Polished Stainless Tips
  • Cut & Clamp Design
  • Made in the USA
  • Fits 2015-2017 GT Fastback Mustangs

Review & Installation Video

Review & Install Video

Hey everyone. Stephanie with here with my review of the American Racing Headers Pure Thunder axle-back exhaust system fitting your 2015 Fastback GT. So right about now, there are a ton of axle-back options for the 2015 GT, and in the grand scheme of things, I'd say that this guy's falling on the quieter side. If you're looking for a little upgrade over the stock sound, the Pure Thunder series mufflers that this system comes with will give you a smooth, deep tone that's mild when we compare it to things like the Borla ATAK, or some of the Corsa offerings, or the Muffler Delete stuff. So we're deeper and a touch louder than stock, but without any rasp, and this system almost gets throatier as you're driving through the RPMs. Not really louder. It just kind of changes in tone. On the loudness scale, I'd call this one a two out of five because you are changing your tone and, especially, deepness factor here, and you're going to end up with what most would call a rumble. We're looking at a two-and-a-half inch stainless steel mandrel bent tubing, which is perfect for cars that see all types of road conditions. We also have four inch polished stainless steel tips. This thing's hitting at a higher price point at just under $1,000, but we still have Corsa's three inch Sport holding on at that top spot. And after seeing this product in person and sticking around for the install, I see a product that's on the same quality level as the Corsa itself, but slightly less expensive. This is a top contender for quality in my book. And continuing along with that quality, as I expected, this axle-back installed really nicely and without any trouble, and it fits great. Like usual, this is a two out of three wrenches on the scale, solely due to the cutting that we all know is required with the install of a 2015 axle-back. You just need to have a fresh Sawzall blade and some eye protection, and the patience to measure out where you'll be cutting. All of this should bolt up in an hour, two tops. So if you're looking for a high quality axle-back that isn't going to be getting you pulled over all the time but that will still wake up your GT and give it a little rumble, then you should take a peek at this Pure Thunder axle-back from American Racing Headers. Listen to the sound clips, check it out online, and we'll see you next time, here at

Deep Muscle Car Tone. An American Racing Headers Pure Thunder Axle-Back Exhaust will add a deep rich muscle car tone to the sound of your S550 GT Mustang with virtually no high pitch rasp or popping. This American Racing Headers Axle-back will also improve your pony's exhaust flow for an increase in overall performance.

Quality Construction. Manufactured in the USA from mandrel-bent 2.5" diameter 304 stainless steel tubing to improve exhaust flow, this American Racing Headers Axle-Back Exhaust System features two chambered Pure Thunder Series mufflers with brightly polished 4" adjustable stainless tips, that exit in the stock locations for impressive muscle car looks and sound.

Cut & Clamp Installation. The installation of this Axle-Back Exhaust requires cutting and removing the factory muffler assemblies and clamping the new muffler assemblies in place. Clamps and instructions are provided.

Application. This American Racing Headers Pure Thunder Axle-Back Exhaust with Polished Tips is specifically designed to fit 2015-2017 GT Fastback Mustangs equipped with the Coyote 5.0L DOHC V8 engine. Not compatible with convertible models.

Fitment: 2015 2016 2017 Details

What's in the Box
  • (1) Driver Side Muffler Assembly
  • (1) Passenger Side Muffler Assembly
  • (2) Exhaust Tips
  • (4) Clamps
Installation Info
Tech Specs
Axle-back Exhaust Specifications
Piping Material: 304 Stainless Steel Tip Material : Polished Stainless Steel
Piping Size: 2.5" Tip Size: 4.0"
Muffler Type: Chambered Fitment: 2015-2017 GT Fastback
Will it fit my Mustang?
  • GT - 15, 16, 17

Not compatible with Convertibles due to different bracing.

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Customer Reviews (1) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Afternoon

  • Loudness / Volume 4 4
  • Exhaust Note 5 5
  • Fit & Finish 5 5
  • Bang For Your Buck 3 3

  • 5/5

    Installation Time: Afternoon

    June 08, 2016

    Arh pure Thunder catback is stellar

    Installed the catback with an x pipe and it's worth every cent! Smooth in idle but let's out a good raspy growl at 2500 rpm and up. When I was getting it installed another mustang owner was getting a full ford racing by borla catback and he was considering returning his system to get the exhaust setup I went with. Definitely recommend to any daily driver


    Year: 2015 Submodel: GT

    Helpful (0)

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