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Roush Axle-Back Exhaust (15-17 V6)

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Market Price $673.99 You Save 12% ($78.00)
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$595.99

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  • Item 387040B

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    Features, Video & Details

    • Aggressive Raspy Exhaust Note
    • Unique Open-Chambered Muffler Design
    • 304 Stainless Steel Construction
    • Full Mandrel-Bent Tubing
    • 4" Round Stainless Steel Tips w/ Chrome Flashing
    • Fits 2015-2017 V6 Mustangs

    Review & Installation Video

    Review & Install Video

    Aggressive Raspy Sound. Let everyone know your V6 Mustang has arrived with the aggressive raspy sound of this high performance Roush exhaust. This innovative new Roush exhaust system features a hollow open 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 mandrel bent 304 stainless steel for a durable long life, the Roush axle-back exhaust system features two unique open 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.

    Cut & Clamp Installation. The installation of this Axle-Back Exhaust requires cutting and removing the stock muffler assemblies, and clamping the new muffler assemblies in place. Clamps and instructions are provided.

    Application. This Roush Performance Axle-Back exhaust system is designed to fit the 2015-2017 V6 Mustangs for both great looks and great sound.

    Fitment: 2015 2016 2017 Details

    MPN# 421837

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (1) Muffler assembly - Driver Side
    • (1) Muffler assembly - Passenger Side
    • (2) Tips
    • (4) Clamps
    Installation Info
    Tech Specs
    Axle-Back Exhaust Specifications
    Piping Material: 304 Stainless Steel Tip Material : 304 Stainless Steel with Chrome Flashing
    Tip Size: 4" Muffler Type: Open chambered
    Fitment: 2015-2017 V6
    Will it fit my Mustang?

      Customer Photos (20) Submit Your Photo

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        Questions & Answers (27)

        5 Top Rated Questions

        Can the stock exhaust go back on after having this on?

        • Since this exhaust is a clamp on, you will be able to re-install the stock exhaust at a later point in time.

        Helpful (11)

        How bad is the drone

        • The Roush Axle-Back Exhaust will produce a small amount of drone, however this will be minimal.

        Helpful (7)

        Will the Roush Axle-Back fit the V6 convertible? The convertible has extra bracing.

        • The Roush Axle-Back Exhaust will fit perfectly fine on a V6 convertible.

        Helpful (7)

        Has anyone installed these themselves? Or did you take them to a garage?

        • A large portion of our customers choose to complete builds themselves and we do have an install guide that will cover the process for you here: https://www.americanmuscle.com/roush-axleback-2015v6eco-cust-install.html You can always have these taken into a shop to perform the install as well if you do not have the time, experience, tools, or space to complete the job!

        Helpful (4)

        Would there be any power gains with this Roush Axle-Back if so how much? And would the Flow Master Cat-Back give more power gains and how much? Thanks!

        • The Roush Axle-Back Exhaust will not add any additional horsepower to the Ecoboost Mustang but removes some restriction from the factory muffler which helps make some additional low end torque. The Roush Axle-Back provides a very durable construction as well as a strong, aggressive tone to give your Ecoboost the best possible sound.

        Helpful (2)
        Post Your Question
        10 More Questions
        Will this axle back work with the 2016 ecoboost convertible?? 1 answer
        Hi! I just ordered this exhaust along with the Flowmaster Scavenger Series Cut and Clamp Resonator Delete Y-Pipe (Item 389694) for my 2016 Ecoboost, and I read that they will fit fine together but I was just making sure before I tried to get them installed. Thanks! 1 answer
        Just to confirm, if I buy only this, I don't need to buy anything else for the mustang to sound different? Sorry, I don't know anything about exhausts. 1 answer
        I already have the https://www.americanmuscle.com/flowmaster-y-pipe-2015gt.html want to get a pair of these. Is there a video anywhere, with the Y-pipe/Roush axle-back setup? 1 answer
        I have Borla Touring cat back on my 2015 v6, If I get this can I just remove the borla axles and put roush without cutting on borla tubes? 1 answer
        I have Borla Touring cat back on my 2015 v6, If I get this can I just remove the borla axles abd put roush without cutting on borla tubes? 1 answer
        can these mufflers be installed with out a custom tune ? 1 answer
        We have Decibels limit in my country, do you know the DB level it would make on 2015 v6? 1 answer
        Is it possible to put quad tips on this exhaust? If so what brands would fit? 1 answer
        Will this be passable in CA? 1 answer

          Customer Reviews (100+) Write a Review

          Overall Rating 4.7

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:$100-$250

          • Loudness / Volume 4.348485 4.3
          • Exhaust Note 4.643939 4.6
          • Fit & Finish 4.901515 4.9
          • Bang For Your Buck 4.583333 4.6



          • 5/5

            Installation Time: Less than 1 Hour

            May 23, 2019

            2015 Mustang V6

            It sounds great easy to install. this with the Roush CAI great combo

            Theylookgood

            Year: 2015 Submodel: V6

            Helpful (0)

          • 4/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            April 09, 2019

            Good for v6

            Much louder. Little drone. Sounds decent in my opinion. Great quality and looks amazing on the car. Good for the price.

            Andrew

            Year: 2016 Submodel: V6

            Helpful (0)

          • 4/5

            Installation Time: Afternoon

            March 20, 2019

            Review from Roush Axle-Back Exhaust (15-19 EcoBoost w/o Active Exhaust)

            Satisfied

            I believe it was a great axle-back exhaust. I did wish it was just a tiny bit louder but obviously I should’ve bought something louder. This exhaust is for someone who wants something louder than stock but not too loud to cut off someone’s conversation that’s talking around the corner. Appearance is great also!

            fredi9654

            Year: 2015 Submodel: EcoBoost

            Helpful (0)

          • 2/5

            Installation Time: Less than 1 Hour

            March 19, 2019

            Review from Roush Axle-Back Exhaust (15-19 EcoBoost w/o Active Exhaust)

            Clamp is too big, muffler fell off

            Clamp on my left side held up, clamp on the right side did not. I’ve had it on for about 15,000 miles or so. It fell off and my exhaust ended up on the highway. Had to pick it up on the highway. Tried to tighten it back up but the clamp is like too big and is maxed out so it wouldn’t tighten anymore. I work at a BMW shop so I had my friend weld in on for me so it won’t fall off again. I will be getting cat backs next time. It does sound like a Honda sometimes but you get over it.

            Fin

            Year: 2015 Submodel: V6

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            March 10, 2019

            Rumble

            For the V6, these can't be beat. Nice rumble, no drone.

            EC

            Year: 2016 Submodel: V6

            Helpful (1)

          • 2/5

            Installation Time: Less than 1 Hour

            February 23, 2019

            2016 mustang v6

            Mine was not loud at all and it really was a very bad experience for me as all my friends were shocked that it does not make any noise. sounds very very close to stock.

            Hafiz

            Year: 2016 Submodel: V6

            Helpful (6)

          • 5/5

            Installation Time: Less than 1 Hour

            January 16, 2019

            Great sound and great quality.

            This is a quality exhaust. Overall I am very happy with this purchase. The install was easy and took less than an hour. There is a little drone at 60, but not crazy. The sound is great. Great exhaust and great sound!

            TobyW

            Year: 2016 Submodel: V6

            Helpful (2)

          • 4/5

            Installation Time: Less than 1 Hour

            January 12, 2019

            Roush axle back

            Easy to install, fits very well. Expected it to be a bit louder but that's just me.

            AlanT

            Year: 2017 Submodel: V6

            Helpful (3)

          • 5/5

            Installation Time: Less than 1 Hour

            December 27, 2018

            Awesome

            It is awesome, if you have a V6, get it for a better sound.

            PavanKumarA

            Year: 2017 Submodel: V6

            Helpful (3)

          • 5/5

            Installation Time: Afternoon

            December 04, 2018

            best

            i think this better tham flowmaster, because flowmaster have drone after 65mph. roush Axle back no drone.

            JiechengL

            Year: 2017 Submodel: V6

            Helpful (3)

          • 5/5

            Installation Time: Afternoon

            December 04, 2018

            Review from Roush Axle-Back Exhaust (15-19 EcoBoost w/o Active Exhaust)

            Must get

            After searching for about a month reading up/watching countless hours of videos on almost every option of exhaust systems for the eco, I came to this. Hesitant of ending up with a ricer sound out of the 4 cylinder, you get the complete opposite. I could not be happier with my choice. If I was faced with the decision over again, I would definitely go with this 10/10.

            HunterM

            Year: 2017 Submodel: EcoBoost

            Helpful (5)

          • 5/5

            Installation Time: Afternoon

            December 02, 2018

            Nice system

            Got these paired with BBK short tube headers and happy with the results. I highly recommend getting headers with these

            BluJ

            Year: 2017 Submodel: V6

            Helpful (3)

          • 5/5

            Installation Time: Less than 1 Hour

            November 30, 2018

            Review from Roush Axle-Back Exhaust (15-19 EcoBoost w/o Active Exhaust)

            Roush axle back exhaust

            This roush exhaust gave my somewhat quiet EcoBoost the sound she was needing definitely woke her up. I now have it paired with a bbk catted down pipe and sounds even better!

            ZenyattaJ

            Year: 2016 Submodel: EcoBoost

            Helpful (4)

          • 4/5

            Installation Time: Afternoon

            November 25, 2018

            Great exhaust , but

            Love the sound, However, the drone at low RPMs in higher gears between 1500 and 2000 RPM is horrible. I would say it is the equivalent of sinning on a twin engine prop plane between the motors . Running the car is sport mode eliminates this because it keeps the rps up.

            BobS

            Year: 2015 Submodel: V6

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            November 12, 2018

            Review from Roush Axle-Back Exhaust (15-19 EcoBoost w/o Active Exhaust)

            Amazing

            The videos do not do it justice. It pops and bangs during launch control and will backfire like crazy. Really quite at low rpm so you won’t wake your neighbors up but put your foot to the floor and it comes to life. Great price, looks great, and installation was simple.

            TroyT

            Year: 2018 Submodel: EcoBoost

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            November 10, 2018

            Roush axel back EX

            Sounds great and gives it a whole different feel. Loved it would greatly recommend it to anybody!

            St

            Year: 2015 Submodel: V6

            Helpful (7)

          • 5/5

            Installation Time: Less than 1 Hour

            November 08, 2018

            Just a 6

            One of the quickest best sounding exhaust systems for a v6 mustang. When it's cold, it pops. When you let off the gas, it pops. When you hit it, it screams. Very impressed. Louder than expected

            TylerB

            Year: 2017 Submodel: V6

            Helpful (6)

          • 4/5

            Installation Time: Afternoon

            October 16, 2018

            Review from Roush Axle-Back Exhaust (15-19 EcoBoost w/o Active Exhaust)

            SOUNDS WAY BETTER THEN FACTORY

            Sounds better and is very noticeable in the higher RPM’s!!!!

            JamesB

            Year: 2015 Submodel: EcoBoost

            Helpful (6)

          • 5/5

            Installation Time: Afternoon

            October 14, 2018

            Perfect!!

            I absolutely love my Roush mufflers on my 2017 V6 Mustang, the overall sound is a major improvement from stock and I'm always catching guys checking it out as I pass them.

            abourchier15

            Year: 2017 Submodel: V6

            Helpful (9)

          • 5/5

            Installation Time: Less than 1 Hour

            September 22, 2018

            Review from Roush Axle-Back Exhaust (15-19 EcoBoost w/o Active Exhaust)

            Fantastic way to get a throaty exhaust note

            Ordered and installed this myself, incredibly easy for even first timers. Very happy with the sound that comes with it. part of me wishes I had gotten the full Roush Cat-Back exhaust, since i think they use these with that kit. But overall, I am very happy with my purchase!

            DerkJ

            Year: 2018 Submodel: EcoBoost

            Helpful (8)

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