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

Market Price $599.99 You Save 4% ($25.00)
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  • Item 387040A
  • MPN# 421837

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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
    • Not Compatible with Active Exhaust
    • Fits 2015-2019 EcoBoost Mustangs

    Review & Installation Video

    Review & Install Video

    What's up, guys? Stephanie with AmericanMuscle.com, and this is my review of the Roush axle-back exhaust fitting 2015 and up EcoBoost Mustangs. The Roush axle-back is going to be a good option for the S550 EcoBoost owners out there that are looking for a more aggressive, raspy exhaust note from an axle-back system. This isn't necessarily an over the top or too loud of a system, but it's definitely not a quiet or toned down system, either. This is a perfect option for guys that are looking for something loud and something that's going to open up some exhaust flow and give a meaner sound than the factory exhaust. The axle-back is designed to open up sound and exhaust flow and ultimately power. This axle-back does have Roush's hollow open chambered mufflers that are straight through mufflers, and it's on the louder side. This is a full stainless steel axle-back and it's also mandrel bent. You're looking at 4 inch polished stainless steel tips for out back as well that are chrome flashed. The stainless steel is always a great option for cars that see all different types of road conditions because it offers great corrosion resistance. From the EcoBoost, you can hear that it idled. The axle-back is deeper than the factory exhaust and it's also louder. As the RPMs climb the axle-back loses some of its deepness and the axle-back gets louder. There's a lot of raspiness and pop to it, but the axle-back's made for that. It increases in volume. It doesn't really get quiet like some other axle-backs do which is what makes it perfect for those that are not looking for a tame exhaust. Speaking of things like volume and raspiness, I will admit that this axle-back may have a little bit of sound distortion to it, especially in the higher RPMs. That is something that's normal even with a factory exhaust and high RPMs. Some people love a raspy note and others try to avoid it. This system has a lot of that. If you're not looking for those qualities then there are some other better options for you on the site. Like most aftermarket axle-backs, this one's going to open up some of that nice turbo noise in the EcoBoost. It has better flow, so the turbo noise is very noticeable with this axle-back. You can hear the turbos full and you get a lot of the blow up noise as well. With all this being said, you have to keep in mind that the EcoBoost is a four cylinder turbo car. It's not going to sound like a V8. It's going to have a different sound than the V6 even. You can't really make it sound identical to a V8. There are, however, other exhaust options that can give you a smoother sound that resembles more of a V8. Don't be discouraged if you're an EcoBoost owner and you aren't into this axle-back. Overall, this is a deep sounding system that has a lot of raspiness and popping to it. I wouldn't call it quiet or tame. This is just an axle-back, so keep in mind that it can get even louder with a midpipe and headers. With that being said, I'm going to give it a solid three or four out of five on the loudness scale. At the end of the day, though, no matter if you love this sound or hate it, it really all depends on what you're looking for and what you like. Luckily, there are quite a few options that are out there. When we start to look at price, we see that this axle-back is going to be on the less expensive side of things. It costs right about $550. Some of the more expensive competition is hitting the $800 or $1000 or even $1200 price point. The budget friendliest are coming in halfway through the $300 mark. You're going to be looking at the typical cut and clamp design with the install with this axle-back like all other axle-backs. I'm going to call this a two out of three wrenches on the scale just like I do with all other axle-backs, but just because of the cutting that's involved. It's nothing difficult. I would just recommend some eye protection and a fresh blade to make the cutting easier. Overall, you're looking at about two hours to get this all done. A lift would certainly make things easier for you here, but the job can be done on stands as well if you don't have access to a lift. Cutting the factory axle-back isn't hard. I would just be sure to measure twice and plan and mark where you'll be cutting so you don't make a mistake. The new axle-back will come with four new clamps for you, two for the tips and two for the axle-back itself so you don't have to worry about that. When you go to install your new setup, it would probably be easiest to leave everything loose until you have it all lined up and then tighten it down. Overall, the Roush axle-back is a great option for those looking for a louder and raspy sounding system. It's an open chambered muffler design. It's made from 304 stainless steel. It has 4 inch chrome flashed stainless steel tips. You can check this axle-back out some more online for yourself. For all things Mustang, keep it right here at AmericanMuscle.com.

    Aggressive Raspy Sound. Let everyone know your EcoBoost 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 2015-2019 EcoBoost Mustangs without the Active Valve Exhaust.

    Fitment: 2015 2016 2017 2018 2019 Details

    CA Residents: Warning: California's Proposition 65

    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 EcoBoost
    Will it fit my Mustang?

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    Questions & Answers (21)

    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 (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 (4)

    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 (2)

    How bad is the drone

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

    Helpful (2)

    Will this axle back work with the 2016 ecoboost convertible??

    • Yes, this Roush Axle-Back Exhaust will work on both 2016 EcoBoost coupes and convertibles!

    Helpful (1)
    Post Your Question
    10 More Questions
    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
    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! 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
    Will this void my waranty? 1 answer
    Will it fits with an aftermarket quad tips 1 answer
    What is the pipe size where the tips clamp onto? 1 answer
    So there is no cutting required to install this exhaust ? 1 answer
    What does no APO mean? 1 answer
    Will this effect factory warranty? 1 answer

    People Who Bought This Item Also Bought

    Customer Reviews (100+) Write a Review

    Overall Rating 4.8

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$100-$250

    • Loudness / Volume 4.371681 4.4
    • Exhaust Note 4.672566 4.7
    • Fit & Finish 4.920354 4.9
    • Bang For Your Buck 4.61062 4.6



    • 5/5

      Installation Time: Less than 1 Hour

      September 22, 2018

      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 (0)

    • 5/5

      September 20, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Now sounds like a v6

      Nice deep burble , throaty when you get on the pedal. Very pleased . You won’t be disappointed!

      BarryN

      Year: 2016 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      September 19, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Solid exhaust note!

      Purchased this muffler set about a week ago and received it very quickly. I took it to a muffler shop to get installed because I live at an apartment complex and don't have the necessary tools, otherwise I would've tried the install myself. Anyways, the exhaust note is absolutely perfect. Deep and throaty when on the pedal, low and relatively quiet when idling. At low RPMs, you can creep along, but punch it and let those RPMs climb and it sounds like a mean son of a gun. It really makes the car feel alive and gives it the sound to go along with the performance of the V6. I definitely recommend this upgrade.

      drivefastallday

      Year: 2016 Submodel: V6

      Helpful (0)

    • 4/5

      Installation Time: Afternoon

      September 19, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Good buy

      Gives your v6 a buffer sound but not high enough to turn heads. Keeps me off the cops radar. This exhaust is good for those who have a show car instead of a race car. I like it.

      Antonio

      Year: 2015 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      September 19, 2018

      2017 Mustang ECO

      if your looking for an exhaust that’s incredibly loud and quiet at the same time this is so the one. Once the turbo is workin hard and when you have the pedal down 1/4 -1/2 it screams. Its awesome quality, the tips are beautiful. So happy with it.

      Joeeyb

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 4/5

      Installation Time: Afternoon

      August 24, 2018

      roush axle back

      Product is awesome and definitely gives your car a deeper tone but i had to remove my resanators to really make it sound deep enough to hear with the ecoboost. Rated a 4/5 because for a 600 dollar performance muffler i shouldn’t have to delete my resanators to get better sound but still a great product and i do recommend if you’re going for a subtle nice sound.

      JoshF

      Year: 2016 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      August 14, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Roush axle back with my bbk headers

      This product gives your v6 and v8 the best sound. Is more aggressive when u hit the throttle and it very quiet when idle. Add this to my bbk shorties and my v6 sounds amazingly perfect and deep.

      RaynoldG

      Year: 2015 Submodel: V6

      Helpful (0)

    • 3/5

      Installation Time: Less than 1 Hour

      August 14, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Vrooom!

      The Roush axle-back exhaust is as advertised; great sounding exhaust note. There appear to be a slight drone at highway speed, but not at all bad.

      GeneC

      Year: 2015 Submodel: V6

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      August 03, 2018

      Awesome sound

      Definitely gives the ecoboost the added "boost" of sound, and its fairly deep too. No heavy drone when at high speeds either.

      JonathanH

      Year: 2017 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      August 03, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Best decision I've made

      Anyone looking to make their V6 sound like a real mustang,this is a great upgrade. Not obnoxiously loud, but loud. I also recommend getting the muffler cutters if doing the install your self rather than usinh a saw zaw.

      RichieR

      Year: 2016 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      July 30, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Exhaust

      It looks amazing :) could be alil more louder but it’s okay:)

      MisaelM

      Year: 2016 Submodel: V6

      Helpful (1)

    • 5/5

      July 27, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Clean tones. Nice rumble.

      Gives a respectable sound to your V6 without being ostentatious. Great warble tones. No drone.

      NoreenT

      Year: 2015 Submodel: V6

      Helpful (2)

    • 3/5

      Installation Time: Less than 1 Hour

      July 27, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Loses Volume after Time

      Had this for about 2 years now and i noticed that its not as loud as when i first put it in. It also lost some of the exhaust tone. Definitely not worth $550. should cost $350 for what you are getting. It is better then most options for the v6 but you wont get much value out of it...

      AndrewU

      Year: 2016 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      July 25, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Sounds like a V8!

      Love it! this exhaust. Wakes up your V6 engine. It also pops too.

      JhonG

      Year: 2015 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      July 24, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Roush Performance Upgrade!!!

      Excellent upgrade for beginners who just started to turn their Mustang into a total beast!!! Sounds really amazing and adding a cold air intake from Roush will add upto the expectations in terms of sound and performance. Recommend for all those who wanna maintain a good sporty outlook with an exceptional results in terms of power.

      Prg0027

      Year: 2017 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      July 06, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Great performance!!!

      Awesome new sound came from my 2017 Mustang V6. I recommend to anyone that search for a really boost performance.

      Juan

      Year: 2017 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      June 22, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Awesome!

      This mods is awesome! easy install, great sound!!

      JeffreyS

      Year: 2015 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      June 21, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      load and little drone

      it’s load but there’s a little drone when driving in highway that gets annoying when you drive 150 miles a day

      TharukaJ

      Year: 2016 Submodel: V6

      Helpful (2)

    • 4/5

      Installation Time: Less than 1 Hour

      June 14, 2018

      Review from Roush Axle-Back Exhaust (15-17 V6)

      Roush Vs Borla Atak

      I had a hard time deciding between a Roush or a Borla Atak. Watched every youtube video out there. I can say im glad i chose the Roush. If you still have a Stock v6 exhaust, This axle back will be perfect. Its exactly like how the youtube videos describe, Quiet when you want it to be, loud when you want it to be. Again, youtube sound clips arnt the best, Out of all of the sound clips i herd, it sounds x2 as better in person. Hope this helps someone out!

      Eddie

      Year: 2017 Submodel: V6

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      June 09, 2018

      Roush axle-back Exhaust EcoBoost 2017

      Excellent.... love the look and sound... loud but not too loud perfect for my taste.I'll recommend this product

      Rafael

      Year: 2017 Submodel: EcoBoost

      Helpful (3)

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