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Roush Axle-Back Exhaust (15-18 EcoBoost)

Market Price $599.99 You Save 4% ($25.00)
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$574.99

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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
    • Fits 2015-2018 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 2015-2018 EcoBoost Mustangs for both great looks and great sound.

    Fitment: 2015 2016 2017 2018 Details

    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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    17 Questions / 5 Answers

    Ask a Question

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

    mustafa

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

      KevinD92

    Helpful (3)

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

    JohnP

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

      AshleyK

    Helpful (1)

    Hello, Is this an homologated exhaust in Europe? I will order it from Spain. Thanks ;)

    SantiR

    How bad is the drone

    HunterH

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

      Rob D

    Helpful (0)

    Will it fits with an aftermarket quad tips

    Js

    • The Roush Axle-Back Exhaust will not work with aftermarket quad tips.

      AshleyK

    Helpful (0)

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

    Dante

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

      AMBill

    Helpful (0)

    People Who Bought This Item Also Bought

    Customer Reviews (89) Write a Review

    Overall Rating 4.8

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$100-$250

    • Loudness / Volume 4.41573 4.4
    • Exhaust Note 4.730337 4.7
    • Fit & Finish 4.921348 4.9
    • Bang For Your Buck 4.64045 4.6



    • 5/5

      Installation Time: Less than 1 Hour

      May 23, 2018

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

      Perfect balance!

      The Roush Axle-Back exhaust is the perfect balance of aggressive and passive! It gives off a nice growl when idling and cruising, but a nice roar when you step on the gas! It won't make your v6 sound like a v8 but it makes it sound respectable and better than a rice burner

      IsaiahD

      Year: 2016 Submodel: V6

      Helpful (0)

    • 5/5

      May 19, 2018

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

      Excellent quality

      I'm not made of money, but I wanted a product that would give me a deeper growl and last a long time, so I wouldn't have to take it to the shop and have something fixed every five minutes. Looks good, sounds great at a good price.

      James

      Year: 2015 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      May 18, 2018

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

      Can't go wrong!!

      I was in the market for an exhaust, honestly I was sold on the Roush exhaust for a while looking up videos here and there. But man do the videos not do it justice! I'm super happy! The sound is amazing and almost unique in its own way. Its loud! and its definitely a head turner! Roush did an amazing job! Honestly you can't go wrong with this exhaust!

      JoshM

      Year: 2015 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      May 17, 2018

      Amazing exhaust

      Just put this exhaust on my 2017 ecoboost. The difference in sound is amazing totally night and day. I would highly recommend this product.

      Kevin

      Year: 2017 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      May 17, 2018

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

      Simply great

      Great sound with such little time needed. But definitely sounds better with X and downpipe

      C

      Year: 2017 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      May 15, 2018

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

      Roush Axle-Bac Exhaust

      It made a huge difference in the exhaust sound right away. i recommend it to anyone with a V6. It is a great upgrade without having to spend a lot of money to do a exhaust upgrade.

      FastandFurious

      Year: 2015 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      May 09, 2018

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

      Wow!

      Best sounding Axleback for the V6! Perfect sound. If you want no drone and a deep mellow tone add Some glass packs in the exhaust. You won’t be disappointed, I have no interior drone whatsoever. Stock headers, Magnaflow x pipe, 26” glasspacks and then the Axlebacks. Sounds so wicked a lot more toned done for those who hate rasp.

      NateR

      Year: 2017 Submodel: V6

      Helpful (1)

    • 4/5

      Installation Time: Less than 1 Hour

      May 01, 2018

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

      Great, deep, rumbly muscle car sound!

      Fantastic sounding exhaust for the price. Nice deep rumble with lots of bass and it pops when you let off the gas. Parts are good quality, easy to install, and have a nice finish to them. Roars nicely when you get on the gas hard but quiets right down when you let off and when cruising. Almost no drone when cruising. The only thing I can't understand is why this exhaust is rated as loud. I don't find it very loud.

      NickL

      Year: 2015 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      May 01, 2018

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

      LOUD

      Great exhaust. The only way to get that v8 rumble...is to get a v8. But this gives the v6 a great throaty sound. At idle it has a deeper rumble, when you open it up it screams. Definitely an improvement over the standard v6 or ecoboost

      ChrisR

      Year: 2016 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      April 25, 2018

      Great sound for the ecoboost!!

      If your debating over this or the Flowmaster outlaw axle back id say i love this sound better. No drone and definitely hear a difference over stock exhaust plus more turbo sound. Raspy at higher rpms

      BennyS

      Year: 2018 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      April 24, 2018

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

      Nice

      I installed the Roush axel back exhaust on my 2017 v6. It get a lot of looks at stoplights. Has a nice aggressive sound for a v6, it compliments the Bama tune and cold air intake very nice. Big Bang for the buck. The install took only 30 minutes

      KennethG

      Year: 2017 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      April 20, 2018

      Great change

      Great upgrade to the car. Should come stock with it

      AubreyF

      Year: 2015 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      April 16, 2018

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

      Louder than expected

      I installed this in about 30 mins. I did get this welded onto the original pipes, might want to look into that! I love this new set up. Won't be disappointed!

      EliasV

      Year: 2017 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      April 13, 2018

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

      Hot Rod Fever

      This unit sounds great looks great and the build quality is great.

      John

      Year: 2016 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      April 12, 2018

      Loud!

      Got the loud sound I wanted out of the ecoboost! You really hear the best out of the exhaust at 4,000 RPMs. I wasn’t too sure on getting roush exhaust but I was surprised on how my mustang sounds now.

      JeffreyM

      Year: 2017 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      April 01, 2018

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

      Sounds like thunder!

      Wakes up the sound of the V6. Tips look expensive and fit is nice.

      JOHNC

      Year: 2016 Submodel: V6

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      March 31, 2018

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

      2017 V6 A6 coupe

      Great fit, quality and very easy install. Great V-6 sound. Much better IMO than going the OEM GT exhaust route. These really make a difference. Sure makes driving in sport mode a lot more fun. No drone at highway speeds. Just a little when lugging the engine, but that's to be expected and easily avoided. Great looking tips that really fill out the openings in the valance. The only drawback is if you wanted to go back to the stock mufflers for some odd reason, it wouldn't be easy because the cut is near the radius of the pipe.

      JosephB

      Year: 2017 Submodel: V6

      Helpful (2)

    • 3/5

      Installation Time: Less than 1 Hour

      March 30, 2018

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

      Sound

      It looks good,a little high for the price.It is loud when you get on it but at low speeds sounds good.The tone could be lower but an awesome exhaust.Had no trouble installing it.Over all is an ok exhaust.

      DannyT

      Year: 2015 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      March 23, 2018

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

      bang for buck

      Great effects, price was reasonable. I wanted a little more sound but satisfied.

      WillieS

      Year: 2016 Submodel: V6

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      March 21, 2018

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

      Nice!

      Looks nice, well finished, add nice tone to the car made my v6 sound like a real v6 with deap tone

      HocineD

      Year: 2017 Submodel: V6

      Helpful (3)

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