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

Market Price $549.99 You Save 6% ($35.00)
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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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    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 4.703063 4.7
    • Exhaust Note 4.872 4.9
    • Fit & Finish 4.897333 4.9
    • Bang For Your Buck 4.803738 4.8



    • 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 (0)

    • 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 (0)

    • 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 (1)

    • 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 (0)

    • 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 (0)

    • 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 (0)

    • 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 (0)

    • 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 (0)

    • 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 (0)

    • 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 (0)

    • 5/5

      Installation Time: Afternoon

      July 27, 2018

      Sounds like a muscle car now!!!

      I was hesitant on these mufflers, didn’t want it too loud going down the road. Well, it is loud on startups and only if you get on it, perfect for what we wanted!!! Oem mufflers were hard getting off and heavy, these were easy installing back on the 2011 Mustang Gt.

      DouglasB

      Year: 2011 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      July 20, 2018

      Mike

      The install was simple and quick. This is the way a Mustang should sound from the factory. My wife loves the roar when it starts and when you push the pedal down.

      MichaelM

      Year: 2011 Submodel: GT

      Helpful (1)

    • 5/5

      July 19, 2018

      2011 mustang gt roush axel back

      Simple install with ramps and socket set. I found it easiest to remove hangars from car, place on new exhaust, then bolt back onto car. 100 satisfied with look and sound. Rest of exhaust is stock and its not too loud but not too quiet.

      MarioM

      Year: 2011 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      July 18, 2018

      Great upgrade

      Great upgrade, easy to install, tips look great, and hardly any drone noise with the windows up. Have to lower the window down to hear that great sound. When ladies and men tell you how great it sounds. You know you made the right upgrade. This is my 3rd catbacks from A/M and I liked them all but this is the one I will stay with. Can't go wrong with this one.

      JerryMizzell

      Year: 2012 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      July 17, 2018

      Roush exhaust

      The sound these make sure wake up your Mustang. They look and sound great.

      Joseph

      Year: 2014 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      July 17, 2018

      Definitely worth it

      My car came with an after market exhaust that the dealership put on it, and it sounded great and it was a well known brand, but it wasn’t as loud as I would have liked it to be. So I was shopping around and I was in between this set up, and a couple other options including just sticking with what I had. The exhaust I had on my car retailed just under $700 just to give you an idea, so it was a nice set up. But after shopping around and doing a lot of thinking I decided to pull the trigger on it. I installed it with my buddy in his garage, and I am not the most handy person, I can do some basic stuff like the intake for example. But this install was pretty straight forward. The hardest part was getting my old exhaust off, and the only reason being was because I live by the beach and the underneath of my car has some rust, so the bolts for the clamps were completely rusted out and broke instately even after spraying some lube spray. We ended up just sawing off the clamps, and once that was done it was cake. Popped the old ones off, put the new ones on. Just had to adjust the tips so they matched. As far as sound: revving sound amazing, pulling sounds amazing, revving in under passes sounds amazingly scary lol, but for an exhaust win basically no mufflers, it has no drone at all. I daily drive my car, putting almost 160 miles in a day some days, and cruising has no drone and isn’t loud and screaming. Oh, and when you down shift it crackles and pops, it sounds incredible. Videos online do not do exhaust clips justice in my opinion, if you have the opportunity to hear an exhaust in person, I highly recommend that. Sounds so much better in person. Overall I 100 recommend this to someone who is looking to turn up the tone, and wants a quality set up.

      DominicE

      Year: 2013 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Afternoon

      July 09, 2018

      Good sound for price

      Install was pretty straight forward, i didnt have to jack up car either. Worst part was lining it all up. Car has a loud start up then calms down at idle. Pretty quiet while cruising (45-55mph), but will get loud when you get on it.

      Drew

      Year: 2014 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      July 06, 2018

      Excellent

      Just what the Dr. ordered. These have an excellent tone without the drone at highway speed. Sounds very mean at cold start.

      BenjieT

      Year: 2013 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      July 05, 2018

      Awesome

      Easy install took me about 30 minutes awesome sounding

      RichardW

      Year: 2013 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      July 03, 2018

      Awesome mufflers

      Look no further these mufflers are the perfect fit and exhaust note .A Roush

      KenN

      Year: 2013 Submodel: GT

      Helpful (2)

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