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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
  • MPN# 421127

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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

    CA Residents: Warning: California's Proposition 65

    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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    Customer Photos (100+) Submit Your Photo

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    Questions & Answers (48)

    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 (11) 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
    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
    Will these fit the Pypes off Road H Pipe? If not, what H Pipe fits with these? https://www.americanmuscle.com/pypes-offroad-hpipe-1114gt.html 1 answer
    Is this exhaust legal in NM? 1 answer
    Hi, what is the weight of these ?? 1 answer
    Hi i have a 2014 mustang 3.7 v6 im just wondering if this roush exhaust would fit to my car. Thanks! 1 answer
    I contacted Roush and they state these will not fit a 2013 Boss 302 but your compatibility shows they will. Why does Roush say they will not fit? 1 answer

    People Who Bought This Item Also Bought

    Customer Reviews (100+) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:0-$100

    • Loudness / Volume 4.696452 4.7
    • Exhaust Note 4.868421 4.9
    • Fit & Finish 4.897368 4.9
    • Bang For Your Buck 4.799736 4.8



    • 5/5

      Installation Time: Less than 1 Hour

      November 14, 2018

      Roush back

      This product are awesome after I put on my cat sound load but same time perfect i love it

      Victor

      Year: 2012 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      November 07, 2018

      Great Exhaust!

      Very easy to install. Really makes the car what it should be. Great sound yet quiet at speed. Now if I pass you with my foot in it, you KNOW you got passed!!! Great value!!

      JerseyHotrod

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      November 01, 2018

      Perfect in every way.

      At first, I was afraid it was going to be too loud, but it ended up being perfect. I didn't want straight pipe loud, but I also didn't want a quiet V8. This setup is not obnoxiously loud. Perfect sound level and beautiful tone. I had a full stock exhaust, so the difference was very big to me. Best exhaust for those looking for an exhaust you can actually hear, but wont tear your eardrums apart if you get on it. Honestly, it sounds so amazing. To emphasize: You will regret buying anything quieter than this. Let that V8 roar! Oh and, no drone either.

      David

      Year: 2011 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      October 16, 2018

      Awesome sound

      Changed out my stock exhaust mufflers on my 2013 Mustang GT. Replaced with the Roush Axle-Back Exhaust on 10/15/18. What a difference. went from a meow to a roar. Awesome sound, couldn't be more pleased.

      robbyshep

      Year: 2013 Submodel: GT

      Helpful (2)

    • 4/5

      October 08, 2018

      Install difficult

      Great high quality system from Roush but unless you have a lift and some experience take it to a professional. Got it installed for $80.00.

      FrankP

      Year: 2013 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      October 07, 2018

      Addictive! No going back!

      Long term review - These Roush axle-backs were purchased in April 2013. Our pony now has 160K miles and the sound is as addictive as ever. At last service new dealer thought there was only 15K. Flawless performance over the 120k mile since installation. The finish has held up to perfection (no winters). I still find myself driving with the window down to listen to the sweet orchestra of the twin Roushes!

      Pendragon

      Year: 2012 Submodel: GT

      Helpful (2)

    • 4/5

      Installation Time: Afternoon

      September 28, 2018

      Its a bit loud...

      2011 GT convertible. With the top up, it's pretty ferocious, but with the top down, it has a nasty poppy sound when your foot is in the gas moderately. More distinct when the top is down. The Coyote's just sound different than the old 4.6's... so maybe thats the issue?

      JohnCanMakeIt

      Year: 2011 Submodel: GT

      Helpful (1)

    • 5/5

      September 28, 2018

      Awesome

      Very pleased with this purchase I did have a muffler shop but them on and it took around an hour to intall them.

      5150krazy

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      September 27, 2018

      great

      they are expensive but I think they are worth it. I have them with off road pypes off road h pipe. I get so many compliments. sounds beautiful. no drone.

      Arshkhosa

      Year: 2013 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      September 26, 2018

      Sweet Sound

      After listening to the sound clips over and over, driving my wife crazy I ordered the Roush axle backs. Cold starts are loud so there’s no sneaking out and if you have neighbors that you like, well, apologize ahead of time...now the good stuff...Tremendous sound, through the gears. Whether you are on throttle hard or not, you gotta love that music. Stand behind it at idle and it has a percolating sound that is wonderful! Yes, you will have that silly grin on your face!

      Bill

      Year: 2013 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      September 19, 2018

      Best sound and easy installation

      This a top quality product with a top quality sound. Mellow, smooth and loud, but not too loud. No drone at high speed. Really the best sounding exhaust. Definitely turns heads. Installation was fairly easy, took about 1 hour with two people.

      JayL

      Year: 2012 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      September 05, 2018

      That 5.0 sound.

      Immediate improvement to sound looks great and extremely easy to install.

      TylerT

      Year: 2014 Submodel: GT

      Helpful (1)

    • 3/5

      Installation Time: Less than 1 Hour

      August 31, 2018

      Disappointed in the long run

      Great sound, easy install, look great too.....until one of the baffles inside broke loose. Now my Mustang sounds like a diesel dump truck when idling at a stoplight, and cold start up in the garage makes you cringe from the rattling. this happened 8 mos after I installed them. VERY disappointed in the quality of these. Despite the awesome sound most of the time, I will probably end up getting new pipes to avoid the embarrassing sound my car makes. Spend the extra $$, get the Borlas.

      ENVY50

      Year: 2013 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      August 31, 2018

      Amazing sound

      If you have no cats and headers then you are going to rip peoples eardrums. Along with the roushes i have kooks headers, catless x pipe and no resonators and oh my it is ridiculous loud. I love it tho. Sounds so good and you just cant beat that signature tone they put out.

      Thatwhite5ohH

      Year: 2012 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      August 29, 2018

      SOUNDS AWESOME!

      It is real hard to pick ahead of time the right sound for a vehicle and the sound is so crucial I feel like these were the better choice for me as far as price and sound combined are concerned. The tips do stain relatively easy but they usually polish right up to where they shine again. The loudness of the pipes is great at higher rpm's like when you are really getting on it but the normal idle they aren't a whole lot of noise at idle. The only thing I really don't care for is the raspy sound at higher speeds right before shifting almost like its running out of engine. But all in all it was good. Installation wasn't difficult looking but I didn't personally install them I had the dealership to do so.

      KFLOW

      Year: 2013 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      August 25, 2018

      roush is great

      fantastic nice product , easy install in less than 2 hours taking my time

      WayneM

      Year: 2011 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      August 15, 2018

      Loud, in a good way!

      I had seen and heard the loud obnoxious mustangs around and knew they were mostly all show and little to no go. But when I put these on my 11 Shelby (slightly modded), it just came alive. The seriously aggressive sounds are there when you want them and it has really helped the car breath a lot better than the stock muffler. I should have replaced them sooner.

      Keyton

      Year: 2011 Submodel: GT500

      Helpful (2)

    • 5/5

      August 15, 2018

      Awesome sound with convertible

      After reading some reviews about the noise level I got concerned because I have a 2014 gt convertible. I had it installed and sat anxiously waiting for them to finish. When I heard them start it up I literally grinned from ear to ear. I could hear it from the waiting room. That deep growl was exactly what I was looking for. It will get loud when you punch it, but not obnoxious. Pretty low volume at lower rpms and on the highway. Highly recommend

      JoeB

      Year: 2014 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      August 15, 2018

      Nice

      Loud start up neighbors will def hear you. Great sound on hard acceleration. Def worth the money by far. A head turner for sure.

      J

      Year: 2011 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      July 30, 2018

      Amazing sound.

      I was nervous and debated for weeks over exhausts, but this was and is an amazing exhaust. Both for sound and and style. Love it!

      Garrick

      Year: 2014 Submodel: GT

      Helpful (2)

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