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Roush Axle-Back Exhaust (15-17 EcoBoost)

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

$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 2015-2017 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 2015-2017 EcoBoost Mustangs for both great looks and great sound.

Fitment: 2015 2016 2017 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?
  • EcoBoost - 15, 16, 17

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
Great

Great product exactly what I was looking for. No drone and a breeze to install roush does a great job in there directions and telling you exactly where to cut

Helpful (2)

5/5
Loud!!

This is an amazing exhaust! Took it to a local shop and they installed it in less than an hour and, wow, does it sound incredible. When I hit the gas it has that deep note that I wanted, but when I'm at ...

Read More
Helpful (2)

Overall Rating 4.7 out of 5 stars
Read All 49 Reviews

Customer Photos (2) Submit Your Photo

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11 Questions / 6 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 (1)

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)

So there is no cutting required to install this exhaust ?

Ed

  • The Roush Axle-Back Exhaust would require cutting of your stock piping.

    JaHarrisAM

Helpful (0)

What does no APO mean?

Steve

  • APO stands for Army Post Office and is used for military bases across the world.

    KevinD92

Helpful (0)

Will this effect factory warranty?

KyleW

  • Generally axle-backs would not void out the warranty. However each dealer has its own take on their warranty. We wold suggest double checking with the dealer who is offering you the warranty first.

    Ricky36

Helpful (0)

Will the v6 axle back fit on the ecoboost? If not what is the difference between the two exhausts?

GrantK

  • This exhaust would be for the use of the V6 models only due to sizing however, we do have this exhaust for the EcoBoost models. https://www.americanmuscle.com/roush-axleback-1517eco.html

    Ricky36

Helpful (0)

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Customer Reviews (49) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Afternoon

Installation Cost:$100-$250

  • Loudness / Volume 4.367347 4.4
  • Exhaust Note 4.734694 4.7
  • Fit & Finish 4.918367 4.9
  • Bang For Your Buck 4.632653 4.6



  • 1/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    July 08, 2017

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

    Roush exhaust

    Sounds like a honda or a car with holes in their muffler.

    EldenS

    Year: 2016 Submodel: V6

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    June 01, 2017

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

    Great

    Great product exactly what I was looking for. No drone and a breeze to install roush does a great job in there directions and telling you exactly where to cut

    Pize

    Year: 2017 Submodel: V6

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    April 30, 2017

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

    Loud!!

    This is an amazing exhaust! Took it to a local shop and they installed it in less than an hour and, wow, does it sound incredible. When I hit the gas it has that deep note that I wanted, but when I'm at cruising speed I don't even know it's back there, which is nice. Sounds great and looks aggressive. Definitely the best mod I've done on my mustang so far!

    AshleyC

    Year: 2016 Submodel: V6

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    April 21, 2017

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

    Great sounding exhaust

    Very happy with this exhaust. I have tried the ATAK and the Roush, and both were great exhausts, but I prefer the Roush. The ATAK screamed where the Roush roars. The ATAK was over-the-top loud but the Roush was a bit more mild in volume. The ATAK honked out an annoying note around 2700rpm, which the Roush is smooth throughout the entire range. I do prefer the weight and smaller profile of the Roush. Sounds great through tunnels. It's less raspy than the ATAK on revs, but still has some nice pops and gurgles. Cruising is much more quieter with the Roush, which makes phone calls through SYNC easier. If you want your car to be obnoxious and over-the-top you won't be disappointed with the ATAK as it was definitely a fun addition, but if you want something that can be quiet or roar depending on your mood, go with the Roush. If you have a CAI installed, the Roush seems to compliment the rumble of the CAI instead of drown it out.

    GaryD

    Year: 2016 Submodel: V6

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    February 16, 2017

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

    Excellent sound and easy installing

    It took me and my workmate less than 1 hour to cut and install it. We all feel it is easier than we expect. The sound is so great and different compare to the original one. It gives the V6 mustang the sound it should have. More people on the road notice and like my car. The muffler won't influence the smog check, right?

    SiqiS

    Year: 2016 Submodel: V6

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    January 19, 2017

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

    SUPER !

    Yes, the car changes alot from original sound to a more agresive sound, specially when u use the Manual pads. the new sound is really nice....

    robertpilot

    Year: 2016 Submodel: V6

    Helpful (2)

  • 5/5

    December 04, 2016

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

    Perfect pickup

    I have seen a massive sound performance improvement on my 2015 v6 mustang. Would recommend to anyone who wants to hear their car running!

    tbabin

    Year: 2015 Submodel: V6

    Helpful (2)

  • 3/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    September 08, 2017

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

    Not The Sound I Wanted

    I thought I would try Roush since reading the good reviews except for a couple of bad ones. I had flowmasters before on my other mustangs and wish I had bought them instead of these. To me I would have to agree with some others it makes my v-6 mustang sound like a rice burner. Next time I will know better

    Loner

    Year: 2017 Submodel: V6

    Helpful (1)

  • 5/5

    June 18, 2017

    Just Right

    Brings the engine to life audibly, not obnoxious, just enough to let others know you are there.

    Dave

    Year: 2016 Submodel: EcoBoost

    Helpful (1)

  • 2/5

    June 09, 2017

    Better of with a catback

    Had these on for about 6000 miles, they did start to show some rust spots and the sound is not significantly improved over the factory

    AllenA

    Year: 2017 Submodel: EcoBoost

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    June 06, 2017

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

    easy install

    I was surprised on how easy it was to install. Sounds great.

    akinsjp69

    Year: 2016 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    May 10, 2017

    Awesome

    When you kick down, sound is surround. But when drive slowly, sound isn't loud

    SakulratL

    Year: 2017 Submodel: EcoBoost

    Helpful (1)

  • 4/5

    Installation Time: Less than 1 Hour

    March 05, 2017

    Roush axle-back

    Amazing sound!! Good quality product, easy insatallation, looks nicer than stock, and less wieght. Wish it was a little louder.

    Moose

    Year: 2017 Submodel: EcoBoost

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    February 07, 2017

    Amazing noise!!!

    It sounds extremely loud!! I recommend it for everyone, sounds perfect!

    EzraFigueroa

    Year: 2015 Submodel: EcoBoost

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    January 18, 2017

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

    2 Words: Oh Yes

    Of the mods I've done so far, this was by far the biggest bang for my buck. The Roush axle-back system gives my V6 the sound it should have had from the factory. 2 shiny Roush-embossed tips give way to the sweet burble. I'm loving it! Fitment was perfect though I opted to have them welded on versus clamp-fitted. Easy install - less than 20 minutes at my local shop.

    Caffn8d

    Year: 2017 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    December 03, 2016

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

    No regrets

    These axle Back exhaust Are great,I was worried when I ordered them cause I didn't want them to be to loud cause of neighbors ,took them to local muffler shop and they installed it in 45 minutes for great price $100, I love the sound..I kept everything else stock only running the Roush AB.. idle is much deeper it's quite at cruise but screams when you hit gas... I got v6 and the stock exhaust was embarrassing but now it's how it should be... 2 thumbs up

    AbeS550

    Year: 2015 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    October 21, 2016

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

    Awesome exhaust!

    Took a friend and myself about 30 minutes to install! Used car ramps. View the video from CJ on YouTube , very helpful. It sounds great! Low rumble at idle, and at low cruising speeds. It really compliments my Roush CAI.

    Silvr15stang

    Year: 2015 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    October 05, 2016

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

    Perfect upgrade for the daily driver

    Love the sound! No drone what so ever. Adds the right amount of aggressive sound without sacrificing comfort. Phone calls still sound crystal clear on both sides unless you step on it. It sounds really good when you get on it in between gears. Because it was a cut to install, it put me back an additional $120. The guy was able to do it in roughly 45 minutes.

    Khris

    Year: 2016 Submodel: V6

    Helpful (1)

  • 5/5

    September 29, 2016

    Great

    Great product. Did not take long to install. Good sound too.

    Heels

    Year: 2015 Submodel: Ecoboost

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    September 22, 2016

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

    Product!

    This product looks and sounds great! Worth the money. I put this on my v6 and it sound 1000x better than it used to.

    Jerry

    Year: 2015 Submodel: V6

    Helpful (1)

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