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

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

      Customer Photos (100+) Submit Your Photo

      View All 100+ Photos

        Questions & Answers (55)

        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 (40) 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 (4)

        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
        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
        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 already have a mbrp cat back system on my 12 GT but I want to install the Roush axle back. How difficult would it be to incorporate this axle back to the already installed mbrp system? I’m assuming this axle back is designed to bolt to a factory exhaust. 1 answer
        Is This roush axle back smog legal in the state of California? 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? 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
        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

          Customer Reviews (100+) Write a Review

          Overall Rating 4.9

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:0-$100

          • Loudness / Volume 4.681648 4.7
          • Exhaust Note 4.87 4.9
          • Fit & Finish 4.89875 4.9
          • Bang For Your Buck 4.799001 4.8



          • 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)

          • 5/5

            April 24, 2019

            Very Happy

            Took less then 1 Hr to install and sounds incredible! Quiet when you are on the highway.

            Horse2011

            Year: 2011 Submodel: GT

            Helpful (2)

          • 5/5

            April 23, 2019

            Sounds Great!

            Looking to give our '13 GT a little more growl over what the stock exhaust provided and this did the trick. Sounds great and looks great. My wife is the primary driver of this and was concerned that it would be too loud, it hits the perfect balance.

            Flats

            Year: 2013 Submodel: GT

            Helpful (1)

          • 4/5

            Installation Time: Less than 1 Hour

            April 21, 2019

            Roush is the best

            I was worry all the time before i installed it in but after i put it on was worth it !

            saad

            Year: 2013 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            April 18, 2019

            Rousch cat backs

            Love the new sound, it's just what I was looking for.

            TimM

            Year: 2012 Submodel: GT

            Helpful (0)

          • 5/5

            April 16, 2019

            Sound's Great

            Love the sound and it was simple to install only took about an hour or so. Great look and light weight

            AndreD

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            April 16, 2019

            Great Quality

            Love them they sound great on BBK Headers, Offroad X, and On3 over-axle pipes!

            OxfordMach1

            Year: 2013 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            April 13, 2019

            Roush axle back

            I have pypes long tube headers, and a custom pypes high flow catted H pipe. With flowmaster 40s. It's alright but wanted more volume and pops. The Roush delivered! This was exactly what I wanted. Awesome sound and a well put together product. The Roush sounded great, but It was just a little too loud for my taste. I know with stock headers and h pipe the Roush will be perfect. Just know if you have aftermarket headers it can be a little much. I ended up taking the Roush off because it was just too loud.

            RobertP

            Year: 2012 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Afternoon

            April 09, 2019

            Great Product!

            Overall great product. Easy to install. Love the sound!

            00GT1400

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            March 30, 2019

            Roush axle back

            Just fitted this Roush axle back to my 2017 gt. Sound absolutely wonderful I could not be happier. I was thinking of put on a h pipe. But there is no need. Only took 1 hour to install. Good quality you would expect from Roush.

            MichaelP

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            March 27, 2019

            Ford mustang gt 2012

            Very good sound, I love them, they are perfect for my mustang, I recommend them to everyone, they are noisy

            IvanE

            Year: 2012 Submodel: GT

            Helpful (0)

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