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Roush Axle-Back Exhaust (11-14 GT; 11-12 GT500)

Market Price $565.99 You Save 7% ($40.00)
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$525.99

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  • Item 69059

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    Features, Video & Details

    • Aggressive Exhaust Sound
    • Unique Open-Chambered Muffler Design
    • 409 Stainless Steel Tubing
    • 304 Stainless Steel Tips w/ Chrome Flashing
    • Fits 2011-2014 GT & 11-12 GT500 Mustangs

    Review & Installation Video

    Review & Install Video

    Hey everyone I’m Justin with AmericanMuscle.com and I’m checking out this Roush axle-back exhaust system for all 2011 and up GT Mustangs. This unique axle-back design from Roush features an open chambered muffler, which allows for a more aggressive exhaust note, while keeping drone to a minimum. The system is constructed from 100% stainless steel and features two chambered mufflers and two four inch stainless steel polished tips, both inscribed with the Roush logo. Simple bolt on installation should take you no more than an hour. Let’s hear how this axle-back compares to the stock exhaust.

    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 304 stainless steel 4" tips. The 4" 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 will fit the 2011-2014 GT & 2011-2012 GT500 Mustangs with either the factory GT rear valance or the Roush rear valance.

    Fitment: 2011 2012 2013 2014 Details

    MPN# 421127

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (2) Muffler assemblies
    • (2) 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: 4"
    Muffler Type: Chambered Fitment: 2011-2014 GT & GT500 Mustangs
    Will it fit my Mustang?

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    Questions & Answers (53)

    5 Top Rated Questions

    What exhaust to buy? I'm looking for an axle-back exhaust that is one notch above stock in terms of sound. I don't mind WOT loud, but at normal acceleration, idle, and cruise I want just a little more growl. I still want to listen to music and carry on a conversation typically. What exhaust do you think fits the bill the best?

    • This would be the best exhaust for your needs. I installed it on my vehicle and the sound is perfect! It is not loud and obnoxious when you are just driving normal, but when you get on it you can certainly tell a difference. This is the best bang for your buck, and has the best sound!

    Helpful (37) Show 4 more answers

    Will the Roush Axle Back tips be flush I've noticed on the '13 models alot of the aftermarket axle back tips stick out vs being flush with the plastic. Is the Roush flush?

    • You can adjust your tips however you like. Flush, outside the valance or in. I have mine sticking out a bit so you can read the Roush name on them.

    Helpful (12) Show 2 more answers

    Is it necessary to purchase the valance with this roush exhaust I am interested in roush exhaust; however, I prefer without valance. Is that possible?

    • Absolutely! You would just Add to Cart without making the selection under accessory options for the Rear Valance. This would only add the Roush Exhaust to your shopping cart. You could also give us a call if you'd like us to place the order for you!

    Helpful (4) Show 4 more answers

    I have a 2013-2014 GT500 rear valence and quad exhaust on my 2013 Mustang GT..You think its possible to install aftermarket quad exhaust tips on this Roush Axle-Back Exhaust instead of the just the single tips?

    • You would be able to install an aftermarket tip on the Roush Axle-Back Exhaust, however we are unsure if a quad tip would clear your rear valance with this axle-back.

    Helpful (1)

    I had the Roush catback for the 05-09 GT is this a pretty similar sound? Or would I need to get a H-Pipe or X-Pipe?

    • The Roush Axle-Back Exhaust will have that signature Roush sound still, however, they will sound different due to the different motors in those years.

    Helpful (1)
    Post Your Question
    10 More Questions
    Is there only one model of Roush axle backs for the 11-14 gt. Other then the two Square tip ones? I've listened to a lot of YouTube videos and love the sound. Just wanna make sure these are the same Roush mufflers I'm hearing 1 answer
    Is this system offered with black tips? 1 answer
    will this system work with my 2014 gt/cs. 1 answer
    Will these fit on the BBK Off-road X pipes? for a 2014 GT? 1 answer
    I have 2013 GT with Ford GT500 catbacks purchased from AM, looking for something a little raspier/aggressive. Would This Roush do that or do you recommend something else? 0 answer
    I already have a after market exhaust on my car and I’m looking to increase the sound even more so is this model the right one if I’m looking for the loudest sound I can get or do you have any other models on you’re website that would work for me? 0 answer
    Is the exhaust California legal ? 0 answer
    Is it possible, with adapted modifications to get this Roush axle-back exhaust to fit a 2007 Mustang GT - given it is fairly similar in design to the Ford Performance FR500S axle-back exhaust for the 2005 - 2009 GT? Thank you for your time. 1 answer
    How long are the tips? 1 answer
    Where is the best place to jack up the rear of the car to put jack stands in place. I have heard jacking up on the differential can damage it. 1 answer

    Recommended For You

    Customer Reviews (100+) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:0-$100

    • Loudness / Volume 4.689744 4.7
    • Exhaust Note 4.87163 4.9
    • Fit & Finish 4.899872 4.9
    • Bang For Your Buck 4.802564 4.8



    • 5/5

      Installation Time: Less than 1 Hour

      March 18, 2019

      Awesome axle back system

      Deep tone. Definitely enhances muscle car sound and appearance.

      Moonrunner69

      Year: 2013 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      March 15, 2019

      Roush axle back

      Easy install, sounds great, you definitely get people attention at a stop light....

      BasilT

      Year: 2013 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      March 12, 2019

      Awesome

      This exhaust really wakes up the car and gives it the deep raspy sound I was looking for

      MG194AR

      Year: 2014 Submodel: GT

      Helpful (0)

    • 5/5

      February 25, 2019

      Love it!

      Shipping was fast. The sound of the car is amazing! Sounds even more deeper than before.

      NickH

      Year: 2011 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      February 25, 2019

      Just enough sound

      I finally got to drive the car to work today, since it has been raining and the car is garage kept. The exhaust sounds awesome from outside the car. Inside, so long as you're not heavy on the gas, there is very little difference in the noise. Once you hit the gas, you will hear the exhaust. At 2000rpm it's fine. The best thing about it is, the car is actually quicker when accelerating. I was not expecting such a huge difference. The fuel economy went down a little, but I did not buy a mustang for fuel efficiency.

      MichaelH

      Year: 2013 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      February 14, 2019

      Amazing perfect to wake up my 5.0

      I love them there perfect right in the middle of not to loud but not to quite prolly well I mean well worth the money I'm very pleased

      RobertM

      Year: 2014 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      February 10, 2019

      awesome

      best bang for my buck. nice sound on acceleration, no drone at steady speed.

      BillR

      Year: 2014 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      February 01, 2019

      Absolutely love it

      installed in my garage within 2 hours. Sounds beautiful. The backfires are glorious, especially leaving the house on a cold start. Was satisfied for a few months but all my friends have full exhaust LS cars so I figured I had to add something else. X pipe did the trick. Fair warning though if you add an off-road x or h pipe it’s LOUD. REALLY LOUD. I managed to get the cops called within 15 minutes of adding an off-road x pipe but that was due to doing pulls at 12am around town. My neighbors (and the local police) hate my car now but it’s really manageable if you keep it under 2000 rpms. looked at as many videos as I could find and still was completely shocked at how loud it is now. Sounds like a freakin race car. 10/10 would recommend these mufflers on their own or if you’re like me and want it loud and raspy go with an off-road x pipe as well

      RyanJ

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      January 25, 2019

      Just the sound I was looking for.

      Yes, Yes, Yes, I love them. I ordered them on wednesday night and they showed up friday, and I used the free shipping option. Can't say enough, first side took 15 min. Seckond took 10 min. Im dropping a trick. Dont screw around trying to pull the button ends through the rubber hangers. Use an a small angle grinder and cut the 2 button ended shafts off the old mufflers and they literly fall out with out having to wresel around with them.

      JimH

      Year: 2011 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      January 11, 2019

      Great for me

      Perfect sound for me big upgrade from stock It makes nice rumble now very easy to install less than an hour worth the time

      WayneJ

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      January 10, 2019

      Love the sound

      It’s a bit louder than I expected, especially at startup, but I absolutely love it!

      DaveK

      Year: 2012 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      January 07, 2019

      Little to no drone sounds amazing

      Sounds amazing already had a resonator delete prior but now it just sounds so much more aggressive!

      Alexis

      Year: 2013 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      December 31, 2018

      EXCEEDED expectations

      Clamps were not included but it was not an issue at all when I saw them installed and heard the best sound for a 5.0. THE BEST option

      RogelioJ

      Year: 2014 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      December 29, 2018

      Happy customer

      Product came in earlier than I thought. Wasn’t to bad to install and the rear deck lid panel wasn’t bad either. Overall a great setup not to loud. Just the right purr. I found that it’s easier if you drop the brackets.

      AndyP

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      December 28, 2018

      Roush

      Put these on my 2014 GT simply the perfect sound for my ears. It’s a muscle again!

      AllenB

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      December 19, 2018

      Quality Product

      Roush certainly delivered thru design and sound on this product. The tone (in my opinion) is just deep enough to grab the attention it deserves but not drown out the functions inside the car..(radio,Bluetooth etc). I would give this product a 6 star rating if I could because the tips on the pipes are the icing on the cake.

      AnsleyH

      Year: 2014 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      December 19, 2018

      Perfection

      This makes my car sound so good, its sounds alot more beefier, you honestly cant go wrong with this. I have it on the stock exhuast and its perfect.

      JoeyR

      Year: 2012 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      December 13, 2018

      Waited Too Long For These!

      This is the way a Mustang V8 should sound! Morning cold starts have become the BEST part of my day! My neighbors scowl at me but I love the way my GT snarls now!

      RandalP

      Year: 2014 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      December 10, 2018

      Great looking and awesome sound

      Really enjoy the quality of the Roush exhaust and the sound is exactly what I was looking for.

      Hoopsam74

      Year: 2011 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      December 02, 2018

      Roush Mufflers - Sound

      Excellent sound and simple to install - took less then 1 hour to install once I had the rear end on jackstands !!

      RichardL

      Year: 2013 Submodel: GT

      Helpful (1)

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