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

Item 69059
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Market Price $565.99 You Save 7% ($40.00)
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$525.99

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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?

      Customer Photos (100+) Submit Your Photo

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        Questions & Answers (58)

        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 (42) 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 (14) Show 2 more answers

        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

        • 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.

        Helpful (5)

        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 (3)
        Post Your Question
        10 More Questions
        How much louder will this exhaust be with bbk shorty headers installed while the rest of the exhaust is stock? 1 answer
        Is This roush axle back smog legal in the state of California? 1 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? 1 answer
        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? 1 answer
        Is this system offered with black tips? 1 answer
        I put a CAI with a BAMA tune on my 2014 GT last year from American Muscle. If I put the Roush Axle-Back Exhaust on, will it effect my tune? 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
        sound is this exhaust so loud that you can't hear the radio or talk to someone? 4 answers
        How loud will these be with 1 7/8 long tube headers and catted X pipes? 1 answer

          Customer Reviews (100+) Write a Review

          Overall Rating 4.9

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:0-$100

          • Loudness / Volume 4.676543 4.7
          • Exhaust Note 4.868812 4.9
          • Fit & Finish 4.897404 4.9
          • Bang For Your Buck 4.791358 4.8



          • 5/5

            Installation Time: Afternoon

            October 13, 2019

            Great item

            Was really suprised by the overall sound of this product. Install was simple and straight foward.

            Jake2400

            Year: 2012 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            October 13, 2019

            Waking Up Ruby

            I just purchased my 14 GT a few months ago and take her to the track occasionally for street legal racing. Got tired of hearing, “that’s the quietest Mustang I’ve ever heard”. Well, I don’t need to worry about that anymore because “Ruby” has risen and woke up with the install of my Roush Axle Back Exhaust. She sounds incredible and the cabin noise isn’t that bad at all, which makes my wife very happy! Install wasn’t that bad at all, used air wrenches and nothing was seized. Total labor was about an hour. Highly recommend and well worth the money! I do agree with one other comment I read, why aren’t 1 or 2 Roush stickers included in the box??? Most aftermarket items come with these.

            RubyGT14

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            October 06, 2019

            Roush Exhaust

            I had Accelletech axle back on my 2014 GT and the drone sound inside drove me crazy even though outside is ha a great sound. I bought and installed the Roush axle back kit and the drone was gone. My car is a convertible and travelling at road speed it is as quiet as stock exhaust inside. Best purchase i could make. Oh yes.....outside it has an awesome sound that is a little louder than the ones I took off but it sounds like it was supposed to now. Love it!

            RonH

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            October 05, 2019

            great exhaust

            If you have a high mileage car. You'll need some elbow grease to bang the stock mufflers off the mid pipe. The install is easier the second time if you haven't done it before lol I completed this with minimal instructions with a jack and two stands in a couple hours. Most that time was spent on removal. The product itself is great though. Sounds godly.

            schonf

            Year: 2011 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            September 30, 2019

            If you want insane loud this is your muffler

            Good muffler easy to install took 45 minutes BUT THIS THING IS INSANE LOUD WITH LONG TUBE HEADERS BEWARE. When you open it up it sounds like a race car and actually hurts your ears. Jury is still out if i can keep these on, i already got pulled over the cop didnt have radar on just heard me pass an old lady ( i most have woke him) and he pulled me over, he told me he never though he would catch me by how loud it was. I was only going 45 mph.

            RIstang

            Year: 2012 Submodel: GT500

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            September 17, 2019

            4 year review

            this was my first mod to my 2014 gt mustang and one of the best. i looked at a lot of different brands and in the end it was down to either the roush or the borla attacks and for half the price of the borlas it was a no brainer. and after 4 years i have no complaints with the roush axlebacks they have held up very nicely. i have no other mods to my exhaust system and what i like about this setup is it can be loud when you romp on it,but somewhat suttle just cruising (and best of all NO DRONE)..

            STANG6914

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            September 16, 2019

            Easy as pie

            Sounds fantastic waaay better than the stock mufflers ,but not police attracting loud.The included instructions were easy to follow.Took less than a hr. To install..look and sound awesome...one complaint would be NO roush stickers in box, for the money you would think they would include 2 stickers ,like most aftermarket products do.

            Timh

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            August 13, 2019

            Roush axel back exhaust

            2013 GT Premium- Delivered in 2 days. Took 30 min to put them on. Most time was taking off the old ones. Fit perfect. Sound great. Just the right amount of sound that I wanted. I could not be happier.

            Mikey

            Year: 2013 Submodel: GT

            Helpful (1)

          • 4/5

            Installation Time: Afternoon

            August 12, 2019

            Roush Exh

            Nice product. A little pricey but I guess they all are anymore.

            WildIrish

            Year: 2012 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $250-$500

            August 04, 2019

            Awesome sound

            I had a sve offroad X pipe installed at the same time and let me tell you on first start up the whole shop said it sounded badass. Its not obnoxious loud but loud enough to tell everyone your mustang means business, i get looks everywhere i go, i cant imagine my 14 coyote sounding any better than it does now 10/10

            djuane

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            July 11, 2019

            Awesome sound

            My very first mod on the 5.0 when I got it and people always compliment me on how it sounds.

            Dohko

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Weekend

            June 30, 2019

            Novice mechanic

            Its been years and years since wrenching on a vehicle but putting this onto my 2011 Shelby GT500 was pretty easy. Taking off the stock mufflers was a bit trickier. Rusty brackets were the problem but it still wasn't bad. This review asks how long it took and i put a weekend because i had to really soak the clamps in WD40 overnight to get them to break free. If nkt for that it wouldve been done in an afternoon.

            Shelbylover65

            Year: 2011 Submodel: GT500

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            June 23, 2019

            Roush axle backs

            Absolutely happy with this exhaust it’s loud doesn’t drone at all and it crackles and pops on deceleration.

            Wheels3

            Year: 2014 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Afternoon

            June 11, 2019

            Great tone

            Changed from GT500 to Roush, more aggressive tone without drone. Highly recommend

            KevinK

            Year: 2013 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            May 31, 2019

            Woke up my 2014 GT

            Price, looks, sound, install... Everything about my new Roush cat-backs are 5-Star!! Arrived quickly and extremely well packaged, installed and fit perfectly, and when I cranked her up I knew instantly I had made the right decision. Rumbly and loud with NO cabin drone! They're 'quiet' when taking it easy and growl like a beast when those horses run, man... all smiles here.

            RussellH

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            May 10, 2019

            Love it, love it, love it

            This exhaust system was exactly what I was looking for. It doesn't drone on the highway, and can be quiet if i'm light on the RPM's. I absolutely love the deep grumble sound, and you can hear it down the road if you get on it. Head turner for sure!!

            Carlie

            Year: 2013 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            May 06, 2019

            Rouse axlebacks

            Had the Rouse axlebacks installed and absolutely love them

            Top50

            Year: 2013 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            May 05, 2019

            10/10

            Great exhaust system, great sound! Love the crackle and rumble it makes when letting off the throttle! It’s a sound that will never get old! Thank you!

            Fishersp4366

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            April 29, 2019

            Roush perfect

            My car is a daily driver and I'm in the car for about 2 1\2 hours everyday. I wanted an exhaust that was somewhat loud and gave that muscle car sound I was looking for without being an annoyance for the day to day. This setup is perfect. It's loud but without the obnoxious drone in the cabin. At 80 mph, about 2200 RPM, you can hear the exhaust but it's not drowning out everything inside the car and giving me a headache, easy to deal with the little bit of added noise. Cruising under 70, almost no added noise. Nice fit and finish. Turns heads for sure.

            Brian

            Year: 2014 Submodel: GT

            Helpful (3)

          • 4/5

            Installation Time: Less than 1 Hour

            April 29, 2019

            Overall satisfied

            Easy to install, only took about 20 minutes with a friend helping. Only issue is the passenger side brackets are a bit too long so the exhaust points right at my rear valance. They are very loud compared to my svt gt500 axle backs i had before

            Isiah

            Year: 2012 Submodel: GT

            Helpful (1)

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