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Roush Axle-Back Exhaust w/ Dual Chamber Tips (13-14 GT, BOSS, GT500)

7 Reviews
Our Price


  • Item #69130
  • MPN# 421410

  • Market Price $599.99
  • You Save 4% ($24.00)
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Customer Photos
  • Aggressive Exhaust Sound
  • Unique Open-Chambered Muffler Design
  • 409 Stainless Steel Tubing
  • 304 Stainless Steel Tips with Chrome Flashing
  • Fits 2013-2014 GT, BOSS and GT500 Mustangs with Roush Rear Valance Installed
Aggressive Muscle Car Sound. Let your engine howl with a Roush Axle-Back Exhaust. This innovative new Roush exhaust system features a hollow chamber muffler that results in increased air flow, and a unique sound, with no in-cabin "boom" normally found with performance exhaust at cruising speeds.

Quality Roush Construction. Constructed from 409 stainless steel for a durable long life, the Roush axle-back exhaust system features two unique chambered mufflers with dual chamber 304 stainless steel tips. The tips are finished with a new chrome flashing process that is resistant to discoloration due to exhaust heat.

Application. This Roush Performance Axle-Back exhaust system with Dual Chamber Tips is designed to fit the 2013-2014 GT, BOSS and Shelby GT500 Mustangs with the Roush Rear Valance installed (Part# 421406).

Fitment: 2013 2014 Details

What's in the Box
  • (2) Muffler assemblies
  • (2) Square Tips
  • (4) Clamps
Installation Info
Tech Specs
Axle-Back Exhaust Specifications
Piping Material: 409 Stainless Steel Tip Material : 304 Stainless Steel with Chrome Flashing
Piping Size: 2.75" Tip Size: -
Muffler Type: Chambered Fitment: 2013-2014 GT, BOSS, GT500 Mustangs
Will it fit my Mustang?
  • Boss 302 - 13
  • GT - 13, 14
  • GT500 - 13, 14

Requires Roush Rear Valance (Part# 421406)

Most Helpful Reviews


This is definitely a good exhaust for the low price. It sounds amazing and turns heads everywhere. Roush did it again

Helpful (2)

Roush Axle back Exhaust

I recommend this product for anyone that wants quality sound and a mean machine sound.

Helpful (1)

Overall Rating 5 out of 5 stars
Read All 7 Reviews

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1 Questions / 3 Answers

Ask a Question

roush rear valance for 13 mustang gt Hi I am interested in the roush valance...I have a roush axle back exhaust but its not the flat tip one. Will mine work?


  • You can buy the valance and square (flat tip?) tip. Once you've installed the valance and add the tips, you should be good to go.


    Good Answer (1) (0)

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Customer Reviews (7) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Afternoon

Installation Cost:0-$100

  • Loudness / Volume 4.857143 4.9
  • Exhaust Note 5 5
  • Fit & Finish 4.857143 4.9
  • Bang For Your Buck 4.714286 4.7

  • 5/5

    Installation Time: Afternoon

    January 01, 2014


    This is definitely a good exhaust for the low price. It sounds amazing and turns heads everywhere. Roush did it again


    Year: 2013 Submodel: GT San Jose, CA, USA

    Helpful (2) (0)

  • 5/5

    Installation Time: Afternoon

    February 21, 2014

    Roush Axle back Exhaust

    I recommend this product for anyone that wants quality sound and a mean machine sound.


    Year: 2014 Submodel: GT Wesley Chapel, FL, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    August 24, 2015

    Match Made in Heaven!

    My 2014 ROUSH Stage 1 looked the part but definitely didn't sound the part. I purchased this ROUSH axle-back to fill this void and found a match made in heaven! Not only do I turn heads now by looks, but people can now hear me coming! Every penny was worth it! Not only does it sound good, it also sheds a ton of weight over the bulky stock mufflers.


    Year: 2014 Submodel: Other Talladega, AL

    Helpful (0) (1)

  • 5/5

    Installation Time: Afternoon

    November 10, 2014

    Just Wow

    This is my first review and fitting it should be for the Roush dual chamber axle backs because I've wanted these for a very long time. They are also the first major change I've made to my Mustang. They are absolutely beautiful to look at. The pop and rumble on these are enough to make your toes curl and heart race from the sound alone. Combine that with the look and you've got yourself something special. If you have a bit more time and money, I recommended these over the regular round tip Roush axle backs. Get a friend or two who aren't shy around cars and take your time with it. Watch online videos on how to install it and you can save yourself a lot of money. Don't think about it, just buy them. You'll be glad you did.


    Year: 2013 Submodel: GT San Francisco, CA, USA

    Helpful (0) (1)

  • 5/5

    Installation Time: Less than 1 Hour

    September 19, 2014

    For real!

    Well i just got this exhaust 3weeks ago,it's really awesome guys! It sounds really good and loud.If u want a real muslce get this!


    Year: 2014 Submodel: GT Toronto, ON, Canada

    Helpful (0) (1)

  • 5/5

    Installation Time: Less than 1 Hour

    May 28, 2013

    The perfect setup!!

    Loud outside, quiet inside, no drone, perfect fit and finish....Love it!!!!


    Year: 2013 Submodel: Other Discovery Bay, ca

    Helpful (0) (3)

  • 5/5

    Installation Time: Afternoon

    October 26, 2016


    To begin with, American Muscle is amazing when it comes to shipping and delivering, I bought my roush axle backs on Monday and they came in Wednesday. This set of axlebacks not only sound amazing but there is next to NO sound when driving with the windows up. Definitely not lacking on the volume on the outside though! I have the bbk after cat x pipe and it's an awesome combo. These only took an hour and a half to install in the driveway.


    Year: 2014 Submodel: GT

    Helpful (0) (0)

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