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Roush Axle-Back Exhaust (15-17 V6)

Item 387040B
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Market Price $673.99 You Save 12% ($78.00)
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$595.99

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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 (28)

        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 (13)

        How bad is the drone

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

        Helpful (8)

        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)
        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
        I ordered this exhaust about 4 months ago and didn’t get the carb sticker 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

          Customer Reviews (100+) Write a Review

          Overall Rating 4.6

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:$100-$250

          • Loudness / Volume 4.267606 4.3
          • Exhaust Note 4.58156 4.6
          • Fit & Finish 4.84507 4.8
          • Bang For Your Buck 4.507042 4.5



          • 4/5

            Installation Time: Less than 1 Hour

            November 08, 2019

            Looks great and installs quickly

            Although it looks great and installs less than one hour....the price is quite high (installer was shocked how much I paid for this). As for the sound......there is definitely a difference, mostly @ RPM’s over 2000. Perhaps seller would be willing to work out a much better deal (cost wise) with another product, such as breather item.

            Smitty

            Year: 2015 Submodel: V6

            Helpful (0)

          • 3/5

            Installation Time: Less than 1 Hour

            October 29, 2019

            Damage and dirty

            I received my box it looks old and damaged box one exhaust is damaged the pipe its like someone hit it and a little bit dirty like used The damaged muffler fix it at the shop About the sound it’s good Not to loud normal noise sound like to much bass very deep tone, shake everything inside the car in low rpms after 2500rpm sound nice Still good exhaust but expensive No drone

            Geram

            Year: 2016 Submodel: V6

            Helpful (0)

          • 1/5

            October 18, 2019

            Horrible

            I had these installed with a flowmaster x pipe and it is so quiet. Can hardly tell if it’s the stock exhaust or not. Wasted so much money.

            ChaseB

            Year: 2016 Submodel: V6

            Helpful (0)

          • 4/5

            Installation Time: Less than 1 Hour

            October 10, 2019

            Nice Exhaust

            Nice deep rumble added! A bit overpriced but a great product. Will me removing the resonator soon for louder sound though

            VVV

            Year: 2016 Submodel: V6

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            September 05, 2019

            Perfect

            Gave me the nice deep rumble I was looking for! Took to have installed professionally

            BrettJ

            Year: 2017 Submodel: V6

            Helpful (0)

          • 1/5

            Installation Time: Less than 1 Hour

            August 15, 2019

            Review from Roush Axle-Back Exhaust (15-20 EcoBoost w/o Active Exhaust)

            Roush axle back

            Worst exhaust I’ve ever purchased. Sounded nothing like the video American muscle had in the description

            Ecobeast2134

            Year: 2019 Submodel: EcoBoost

            Helpful (2)

          • 5/5

            Installation Time: Afternoon

            June 27, 2019

            Great product!

            Great product with great sound! Definitely the best for your money

            Sono

            Year: 2016 Submodel: V6

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            June 11, 2019

            NOT BAD

            was hoping to would add a lot more sound to my car but overall a great product

            coolapozos

            Year: 2017 Submodel: V6

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            June 11, 2019

            Best V6 Exhaust

            Gives it an aggressive sounds and very easy to install.

            NB

            Year: 2016 Submodel: V6

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            May 30, 2019

            Vroom Vroom

            Turning heads when I pick up the rpms with the sound. Love it!

            DisGuy

            Year: 2015 Submodel: V6

            Helpful (1)

          • 4/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            May 30, 2019

            good exhaust, not as loud as i thought.

            this is a good exhaust, and looks and sounds good on my 2015 v6, I thought this was going to be much louder based off the install/review video, and youtube videos, but actually its just a little louder and deeper than stock. there is a noticeable drone too. I am going to end up getting an x-pipe with it. Fitment was a little iffy too. but other than that, good product.

            jacob

            Year: 2015 Submodel: V6

            Helpful (0)

          • 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 (15-20 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 (15-20 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 (1)

          • 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 (9)

          • 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 (3)

          • 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)

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