Roush Axle-Back Exhaust Kit Stainless Steel GT 2011-2014

Roush:
421127
Roush Axle-Back Exhaust Kit Stainless Steel GT 2011-2014 is rated 5.0 out of 5 by 35.
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Highlights

  • 304 Stainless Steel
  • Mandrel Bent
  • Includes Clamps
  • Instructions Included
MSRP $565.99
$525.99
You save 7%

Roush Stainless Steel Axle Back Exhaust Kit for all 2011, 2012, 2013 and 2014 GT Mustangs.

This amazing axle-back exhaust kit from Roush will offer your 2011-2014 5.0-liter Mustang GT a distinct and aggressive sound. The Roush axle-back system is a highly tuned piece of engineering that will avoid the annoying in-cockpit boom, which can occur with other competitive exhaust systems on the market.

Installation is quick, easy, and will use all of the factory hanger locations and pierce points. No modifications to the vehicle are necessary. And all of the hangers are chromed for superior appearance and corrosion resistance. As an added bonus, brand new, high quality OE-spherical clamps are included in the kit to complete the installation without reusing the clamps found on your factory axle-back.

Features and Benefits:
- No Negative Impact on Emission Devices
- Hollow Chamber Yields Higher Airflow
- 4” 304 Stainless Steel Chrome Tips
- Fits Both Ford Factory and Roush Rear Valance
- Higher Air Flow and Less Back Pressure for Increased Horsepower and Torque
- Direct Bolt-In, For an Easy Installation
- Includes All Necessary Hardware and Instructions

*Will also fit 2011-2012 GT500 Mustangs with the stock or Roush rear valance.

Constructed from 409 stainless steel, this axle back exhaust system features an exclusive open-chambered design that will not deteriorate over time, unlike conventional fiberglass roving material. The exhaust tips are made from 304 stainless steel and finished with a unique chrome flashing process. Chrome-flashing on tips provides heat resistance to color change.

Order the Roush Stainless Steel Axle Back Exhaust Kit for your 2011, 2012, 2013 or 2014 Mustang GT from CJ Pony Parts today!

Installation Difficulty

Moderate
Moderate

Intermediate skill is required for this installation.

Installation Videos

Vehicle Fitment

This product will fit the following Mustang years:

Rated 5 out of 5 by from Perfect sound, even better with an X-Pipe! Bought the Roush axleback kit after finding the GT500 axleback kit a bit tame for my liking. Had a shop install the axleback so I can't speak for how easy it was, but they were done in 40 minutes. The volume is perfect and the tone is aggressive. It is louder on the highway compared to the GT500s, but minimal resonance and drone. Later I ended up adding an after-cat X-pipe and it completely changed the sound. Slightly quieter and a much higher pitch from the exhaust. Seemed to also get rid of the minimal highway drone and the "snap crackle pop" sounds when slowing down using the factory H-pipe. Still a little loud on cold startup, but for the price, it's hard to beat the Roush axleback.
Date published: 2015-10-17
Rated 5 out of 5 by from Roush Axle Back Exhaust - Excellent Sound I ordered this to replace the exhaust on my 2013 Mustang GT. I had watched several videos of others that replaced theirs and the sound improvement was awesome. I had the Ford dealer install the exhaust and I couldn't be happier. When I started the car after having it installed I was amazed at how good it sounds. I was equally amazed and happy that at freeway speeds the exhaust is not much louder than stock. CJ Pony Parts shipped the exhaust on the day I ordered it (Friday) and I got it on Monday. Very happy with the product and the fast shipping.
Date published: 2015-08-23
Rated 5 out of 5 by from Great sound!! My wife and I did a lot of research before deciding on the Roush. We listened to several different exhaust systems on you tube through our Bose sound system. I have to say the videos sounded great but did not give the true sound you would get live. We had the Roush installed and my wife picked the car up that day because I was working. When I got home she was waiting for me and I stood behind the car when she started it. I could not believe how great it sounded! She said all the guys at the muffler shop stood outside and watched her leave to hear the sound. It is much louder than I thought when you get on it, but driving down the road sounds quiet enough to have a normal conversation. We could not be more pleased with it!!
Date published: 2016-05-31
Rated 5 out of 5 by from Roush Axle Back awesome sound Very quick delivery to NZ. Very easy to fit and wow amazing sound over factory exhaust. Increase HP is also very noticeable. Well worth while upgrade and worth every penny. Many thanks CJ's.
Date published: 2015-04-01
Rated 5 out of 5 by from Awesome! Fast shipping only took three days to get them. They look great! Can't wait till this summer to put them on.
Date published: 2015-03-10
Rated 5 out of 5 by from Roush Axle Back I installed the Roush Axle Back a few weeks ago on my 2014 Coyote, and I couldnt be happier with the outcome! The kit is pretty quiet during basic driving. (No pesky drone sound when highway driving either!) Its docile up to about 3500rpm, go above that or at WOT, the car sounds like it should! AWESOME product and I highly recommend to anyone Installation took less than 2 hrs and I didnt even have to remove the intermediate pipes to get them on!
Date published: 2015-02-13
Rated 5 out of 5 by from Easy Install, Great Look and Nice Sound Installation took about 90 minutes and the instructions were excellent. The exhausts sound great much better than the stock exhausts. I would highly recommend these.
Date published: 2015-10-04
Rated 5 out of 5 by from Great product upgrade Very fast shipping. Installation was good, it fit together nicely. Wow it sounds great. A good upgrade. People will notice. Performance improved,more responsive.
Date published: 2015-06-27
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are these CA noise compliant with a stock engine?

Asked by: marshawnmustang
We don't keep track of the aftermarket part laws in any area, so we'd encourage you to check the list of official approved CARB parts here: http://www.arb.ca.gov/msprog/aftermkt/devices/amquery.php.
Answered by: jmg1
Date published: 2019-02-19

Will this fit with a 2013 gt California special rear valance? It's stock, but different from a stock gt model.

Asked by: Tony gtcs
Yes.
Answered by: CJPP Dave
Date published: 2018-07-27

Will be this exhaust system fit a 2012 mustang 3.7 l. V6. il thin

Asked by: Don polesnk
This will not fit your application.
Answered by: rk cjpp
Date published: 2018-05-25

Would it fit a 2012 Boss 302?

Asked by: SC25
Yes.
Answered by: CJPP Dave
Date published: 2017-11-28

Will this fit my 2013 Ford Mustang? Its a v6, 3.7L

Asked by: Pollydizon
No, see P/N: CBR13
Answered by: CJPP Dave
Date published: 2017-08-14

Do you guys ship internationally? i live in the Philippines. Thank you!

Asked by: Naiel
To get a shipping quote and total price, add the item(s) to your shopping cart and then proceed to checkout. In checkout, fill out your address info and scroll down to see shipping options and costs to your area including any import taxes and duties.
Answered by: rk cjpp
Date published: 2019-04-11

how much to ship to uk

Asked by: tyreman 31
To get a shipping quote and total price, add the item(s) to your shopping cart and then proceed to checkout. In checkout, fill out your address info and scroll down to see shipping options and costs to your area including any import taxes and duties.
Answered by: CJPP Dave
Date published: 2017-07-06

Are these mufflers a nice deep sound or just factory?

Asked by: skye10
This amazing axle-back exhaust kit from Roush will offer your 2011-2014 5.0-liter Mustang GT a distinct and aggressive sound.
Answered by: rk cjpp
Date published: 2017-03-17
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