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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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$514.99

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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

    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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    47 Questions / 85 Answers

    Ask a Question

    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?

    mbrewer566

    • 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!

      striker79

    Show 4 more answers Helpful (37)

    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?

    tjb144

    • 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.

      ts60

    Show 2 more answers Helpful (11)

    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?

    Ruby

    • 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!

      LisaS

    Show 4 more answers Helpful (4)

    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?

    PatrickD

    • 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.

      AMRobD

    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?

    Erik

    • 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.

      Ricky36

    Helpful (1)

    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

    JoeM

    • There are a few versions of the Roush Axle-Back Exhaust depending on your exact year model and your year valence. Please use the "filter" option on the left side of the webpage for your year model to show all of the available options.

      AMJEFF

    Helpful (1)

    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 4.704762 4.7
    • Exhaust Note 4.87466 4.9
    • Fit & Finish 4.896458 4.9
    • Bang For Your Buck 4.806275 4.8



    • 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 (0)

    • 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 (0)

    • 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 (0)

    • 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 (0)

    • 5/5

      Installation Time: Afternoon

      July 01, 2018

      Perfect

      2nd set of Roush axle-backs I've owned. First was on a '14 V6 and now on a '14 manual GT. Best mod ever! Sounds like a Mustang is supposed to sound. Lots of cracks and pops on decel. Nice rumbles all the time. Roars when I want it to. No drone.

      LGHTSPD

      Year: 2014 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      June 29, 2018

      Tight fit if you have a hitch

      Easy install (once I read the instructions!) Took me over an hour, but it can easily be done in less than 1 hour. I have to pull a small trailer (for a wheelchair). One of the hangars on each side lay right on the hitch. Thought it was going to rattle, but so far, so good. (My Mustang is a 2013, but that option was not available in the review pull-down menu, so I entered 2009!)

      Doug

      Year: 2009 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      June 29, 2018

      Roush Exhaust

      Shipped quickly, easy to install and sounds great! Replaced some rusted rough exhaust that was already on the car.

      Oz

      Year: 2012 Submodel: GT

      Helpful (0)

    • 5/5

      June 27, 2018

      Roush Rules

      Looks awesome,and sounds even better! No drone and not annoyingly loud. It brings your car to life and more fun to drive! Definitely recommend this set up. I paid $90 at local muffler shop for installation

      PaulS

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      June 25, 2018

      Great product

      I was a little worried about in cabin noise but when your cruseing on the hwy it has litttle to no drone depending on your speed. When you open it up is sounds great as well as taken off from light to light definitely sounds good especially with the top down

      greencobra

      Year: 2011 Submodel: GT500

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      June 23, 2018

      OUTSTANDING EXHAUST - SOUNDS GREAT!

      This Roush axle-back sounds amazing on my 2014 GT. It was the first modification I've done and I could not be any more pleased with this item. It's not too loud to where it's annoying, but definitely not quiet and gets some attention. Took about an hour for install, very easy and straight forward.

      MatthewS

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      June 22, 2018

      Music to My Ears

      I absolutely love the sound of a V8. This exhaust was easy to install and that roudy sound I was looking for. It’s mellow sounding when cruising but growels like a lion when I push it. Worth every penny.

      GregB

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      June 21, 2018

      Great Exhaust!

      I debated on what exhaust system to buy for months before deciding on the Roush system, great decision! I listened to every clip I could find of every axle back system out there and I kept coming back to the Flowmaster outlaw and the Roush. In the end the Roush won because I was looking for the raspy sound ans no drone. The tone of the exhaust has a nice deep town with a raspy growl of a high end race car. One tip i used to install was to remove the brackets that hold the rubber hangers from the car and attach the new system to the hangers then bolt it back onto the car. This made the install extremely easy and quick.

      LarenR

      Year: 2013 Submodel: GT

      Helpful (3)

    • 5/5

      June 20, 2018

      Great product!

      Awesome sound! Looks good and easy to install. I wouldn't expect anything else from a roush product.

      JustinN

      Year: 2014 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Afternoon

      June 08, 2018

      Awesome Exhaust

      Great system. Need to do this on a car lift, not on jacks!!!! Thank God I had access to a buddies car lift. Install cat backs first, then the exhaust. Unlike the directions say. Increases a noticeable low end torque without a tune You will love this system, low rumble under 2500rpm. When you get on it, Heads turn everytime!!!!

      RonR

      Year: 2013 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      June 08, 2018

      What a sound

      Rumble and Bumble like it has to be. I use those with the straight pipes from Borla. Not to loud, just perfect.

      Boris

      Year: 2013 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      June 07, 2018

      5 Stars

      Great bang for the buck exhaust. Awesome sound without the drone when you’re not getting on it. Not obnoxiously loud, but people will definitely know you’re around

      NateB

      Year: 2011 Submodel: GT

      Helpful (1)

    • 3/5

      Installation Time: Less than 1 Hour

      June 05, 2018

      Nice but expected louder rumbling

      Bought it for my sons car it’s a nice add on just expected a little better sound good add on just not great

      Ramiro

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      June 01, 2018

      Awesome sound

      Can’t go wrong with the sound or price, really good exhaust, only took me a while to install because it was my first time working with any kind of exhaust

      DanielT

      Year: 2014 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      May 30, 2018

      2011 GT500

      I’m totally satisfied with this system. I realize it may not be cool to put Rousch parts on a Shelby but I felt the Rousch axel back system had the best sound. I was not disappointed.

      DeanC

      Year: 2011 Submodel: GT500

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      May 28, 2018

      Roush axle back Exhaust

      Happy with this amazing sound!!! All good with this product!!!! I will recommend to anyone, you will not regret it!!!!!

      GerardoC

      Year: 2014 Submodel: GT

      Helpful (1)

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