2015-17 Ford Mustang Roush Axleback Exhaust GT - S550 by Roush

Mustang Roush Axleback Exhaust (15-17)


Details   |  Description   |  Videos   |  Customer Photos   |  Reviews
  • Roush Mustang Axleback Exhaust (2015) GT 421834
  • Roush Mustang Axleback Exhaust (2015) GT 421834
Mustang Roush Axleback Exhaust (15-17)
  • Roush Mustang Axleback Exhaust (2015) GT 421834 - Roush Mustang Axleback Exhaust (2015) GT 421834
  • Roush Mustang Axleback Exhaust (2015) GT 421834 - Roush Mustang Axleback Exhaust (2015) GT 421834

Increase performance & sound in your 2015-2017 Mustang GT with this Roush axleback exhaust kit!

Item #RSH-421834
MPN# 421834

Everyday Low Price: $549.99

In Stock

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Get it by Christmas! Order by December 16, 2016 @ 3pm CT

Benefits

  • Aggressive Sound
  • Increased Performance
  • Made In USA

Features

  • 304 Stainless Steel Construction
  • 4" Tips
  • Mandrel Bent Tubing
  • Roush Quality

What's in the Box

  • (1) LH Muffler Assembly
  • (1) RH Muffler Assembly
  • (2) Exhaust Tips
  • (4) Exhaust Clamps
  • Installation Instructions

Product Description

Roush Rumble
Give your 2015-2017 Mustang GT the wild howl of American V8 muscle that it deserves. This innovative new exhaust system from Roush features a hollow muffler chamber, as opposed to conventional fiberglass-packing. The result is a unique and less inhibited sound, increased air flow, and increased longevity (there is no fiberglass that will break-down with time). Another great feature of this 2015-2017 Mustang Roush exhaust system is the lack of the in-cockpit boom normally found with performance exhaust systems at cruising speeds.

Top Notch Quality
Not only does this exhaust sound good, it looks good as well. The round tips are made from high-quality 304 stainless steel and are finished with a chrome flashing process. Conventional chrome plating uses layers of bonded chemicals to achieve its shiny appearance, which are susceptible to cracking and flaking especially when exposed to high temperatures (like exhaust). However, the chrome flashing used in this system is bonded micro-porously to the metal surface, and is as a result impervious to cracking from localized damage. This method of chroming is also resistant to heat color change.

Application
-Fits 2015-2017 Mustang GT


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Product Videos

Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!


Customer Photos (2)



Product Reviews (17)


4.8
out of 5 stars
5 stars
17 reviews
5 stars    15
4 stars    1
3 stars    1
2 stars    0
1 star    0

100%
OF CUSTOMERS
RECOMMEND THIS PRODUCT
17 of 17 REVIEWS
RECOMMEND THIS PRODUCT
17 of 17 REVIEWS


5 Stars   Great quality, great sound
By on 2/13/2015
I previously installed Roush's axle-back kit, on my stock 2012 Mustang GT and loved both the easy install and the sound. As-advertised, the tone is mild under part-throttle and authoritative under load, but it's certainly not objectionable.
Taking delivery of a new, 2015 GT, I found the O.E. exhaust to be significantly quieter, compared to the 2012. No questions asked, I immediately ordered Roush's kit. Delivery was swift and the quality is great, just like before. Install is slightly more cumbersome, as cutting is (now) involved-not a big deal at all. The tone and overall volume is very similar to my results with the 2012, but it's not identical. I attribute the difference to the (significantly) larger resonator on the S550's, which appear to be stuffed full of cotton.
I'm quite happy with the results-I can actually hear the Coyote, for the first time now!


Yes, I would recommend this item to a friend!


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5 Stars   Sound Great!
By on 3/18/2015
I bought theses about 2 weeks ago and I am glad I chose them. Install was easy using just jack stands. Once the stock pipes were cut, the install was a breeze. Everything fit as it should so there was no need to "muscle" anything into place. I left the stock resonators on but it is still plenty loud for me. At idle there is just a low rumble. When you step on it, however, people know you are there.

Yes, I would recommend this item to a friend!


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5 Stars   Sounds Awesome!
By on 3/3/2015
Had these on my 07. Installed them on my 15 and added a Ford X-pipe and it now sounds raspier (not sure if that's a word) then on my 07. Overall, can't complain about the awesome sound, especially at cold start in the morning. I quickly pull out of the garage as I don't want to wake up the neighbors.

Yes, I would recommend this item to a friend!


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5 Stars   Great Sound with Ford Racing X-Pipe
By on 3/6/2015
Had these on my 07 GT, and I had to get them for my 15. Together with the Ford Racing X-Pipe gives you the right sound for the Mustang. Having to cut the pipe instead of bolt-on/off like the previous generation was a pain but well worth it.

Yes, I would recommend this item to a friend!


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5 Stars   Easy to install and great sound.
By on 5/12/2015
Very easy to install and great fit and finish. Took less than an hour total. Sound is amazing. Installed ford racing X-pipe resonator delete at the same time and definitely woke her up.

Yes, I would recommend this item to a friend!


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5 Stars   Great sound!
By on 10/11/2015
I bought this exhaust thinking it would be an in between the Ford Racing and MagnaFlow but no.....it's better! I can't lie....it does drone a little at certain RPM's but it's not crazy loud. I have traditionally bought Ford Racing or Borla and this is just as cool or better...the price is right that's for sure. Do your homework and listen to all clips or even better do like I did and talk with folks in your local area Mustang clubs and listen to them them make your decision.

Yes, I would recommend this item to a friend!


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5 Stars   L O U D!!!
By on 7/11/2015
I was going to get Ford Racing X Pipe with muffler deletes, but decided to go with the X Pipe and Roush so it wouldn't be illegal.

I have to say that Roush Axle Back with X Pipe is as loud as going straight pipes, but it sounds much better.
It took me about 3 hours to do, it was my first time doing anything with cars, the hard part was to take X Pipe. To install the Roush Axle Back, it was easy!
Here is a video: https://youtu.be/AcM6VFcUylI

Yes, I would recommend this item to a friend!


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5 Stars   Great sound
By on 11/22/2015
I love how it sounds. I also have Ford Racing X Pipe and it's really loud and aggressive. Installation was pretty easy, it took me 3 hours to do the Axleback and the X Pipe This was my first time doing it.
This is what sounds like: https://www.youtube.com/watch?v=AcM6VFcUylI


Yes, I would recommend this item to a friend!


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5 Stars   Awesome!!!!
By on 9/1/2015
Image uploaded by Brad B. Had 2014 GT with another exhaust. Got a 2015 GT Premium and wasn't going to make the same mistake. For the price and sound you can't go wrong. What an awesome sound they make, add a ford racing Xpipe and baaam booom!!! These things came alive!!! These are not ment for the weak hearted but for the guy who likes to turn heads, get some! Plus a 10 year old could install these. There really that easy. Don't be intimidated. Cut, pull off, put on and clamp. It's that simple. Save your self a $100 bucks, or give it to me and I'll install them.

Yes, I would recommend this item to a friend!


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5 Stars   Awesome sound!
By on 5/19/2015
I recently purchased the Roush mufflers for my 2015 Ford Mustang GT convertible. They fit perfectly, and sound super awesome! A great new addition for my new pony. Customer service was great and very knowledgeable when I called with questions before my purchase. I highly recommend this product upgrade! Thank you Late Model Restoration!

Yes, I would recommend this item to a friend!


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4 Stars   Great product/buy! But one of my tips has a dent dent, that's why 4 stars. Not too happy.
By on 6/28/2016
I ordered this product for my 2016 Mustang GT. I wasnt too happy with the buy since one of the polished tips is dent. It sounds good. This is a type of axleback if you want to cruise without noise. But once you get on the gas pedal you will definitely be noticed.

Yes, I would recommend this item to a friend!


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5 Stars   Sounds incredible
By on 9/1/2016
Image uploaded by Kevin K. Bought this axle back 8 days after I bought my car and it was very well worth it! The fit was perfect, and installation only took about an hour. Sounds amazing! Very aggressive

Yes, I would recommend this item to a friend!


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5 Stars   Sounds fantastic!
By on 4/28/2016
I have this with the resonator delete and the car just sounds amazing!! No drone at all. And the tips make the rear end look just a tad meaner! Love this exhaust.

Yes, I would recommend this item to a friend!


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5 Stars   great fit! exhaust tips look awesome
By on 5/10/2016
bought this axleback a few months ago and man I'm so glad I did, fit and finish was on point and the exhaust tone is exactly what I was looking for!

Yes, I would recommend this item to a friend!


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5 Stars   Sounds great!
By on 4/3/2015
Easy install and sounds like a real Mustang now! It was way to quiet from factory. My gas mileage has gone down because I love the sound.

Yes, I would recommend this item to a friend!


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5 Stars   Great sound
By on 1/18/2016
This axle back is awesome. LMR was great, I bought it on Friday and they shipped it on Monday and it took only 4 days to get it.

Yes, I would recommend this item to a friend!


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3 Stars   easy install
By on 4/12/2016
Put system on 3 weeks ago, sounds great. Quiet at highway speeds

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


Roush
Roush - The Art of Performance Engineering
ROUSH Performance is the first specialty-vehicle company to combine race-proven technologies with advanced automotive engineering. The result, a unique mix of street car and race car...Is a ROUSH car. Or more specifically, a ROUSH Mustang or F-150 pickup with styling, performance, and handling characteristics derived from the racetrack and modified for street legal usage. The vehicles and components produced by ROUSH Performance are imprinted with Jack Roush's vision, passion for performance, and commitment to excellence. He personally approves the design, engineering, fit, finish and overall performance of each package, ensuring that his personal standards are met prior to production and product release. Many of these products are designed by the same engineering group that has helped Roush Racing become the winningest Ford racing team in history.

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