Win A 2018 RTR Spec 3 Mustang Enter Now!
Talk to a Mustang Expert
Mon - Sun, 8:30 AM EST - 11:00 PM EST

Free Shipping On Orders Over $49. Details

Borla Downpipe - Off-Road (15-18 EcoBoost)

Market Price $559.99 You Save 11% ($60.00)
Our Price

$499.99 (each)

FREE Shipping
  • Item 389217
  • MPN# 60559

In Stock Ships same business day.
Ship to: ASHBURN - 20146
Please enter a valid Postal Code
We're sorry, zip can't be updated at this time.
Choose options to add to cart
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features, Videos & Details

    • Borla's Off-Road Performance Down Pipe
    • Increases Rear Wheel Horsepower and Torque
    • 304 Stainless Steel Construction
    • Free Flowing 3" Mandrel-Bent Tubing
    • More Aggressive Sound Compared to Stock
    • Includes Adapter for Use with Stock Factory Exhaust Systems
    • Fits All 2015-2018 EcoBoost Mustangs

    Review & Installation Video

    Stephanie with, here with this Borla off-road downpipe that's available for all 2015 and up EcoBoost Mustangs. Like most factory exhaust pieces, the factory downpipe on the EcoBoost Mustang is pretty restrictive. So this downpipe is going to be for the owners who are looking for less restriction, which ultimately leads to some improvements in performance, because it helps the airflow of the turbo, where you pretty much want things as unrestricted as possible. So you can spool the turbo more quickly, which is where your gains will come from. Some of the main features of this particular downpipe are that it's a full stainless steel three-inch pipe, which is a bigger diameter than the stock pipe. And it's also Mandrel-bent, which may sound trivial to some, but it's important for smoother airflow. Another thing is this downpipe is uncatted, so there's an additional reason as to why this is less restrictive and more free-flowing than the factory downpipe. One of the great things about this downpipe is that it gives you an option when it comes to the rest of your exhaust. Borla includes an adapter for this downpipe, so you can still use your stock exhaust if you want, which I think is nice because you can still get the benefits of an aftermarket downpipe but you don't have to worry about springing for other exhaust system components while you're at it. Or your other option here is to go with a three-inch cat-back from Borla down the road if you want. And Borla is one of the only companies that give you this choice right now of sticking with your stock exhaust or going with an aftermarket cat-back. So even though the main idea behind an aftermarket downpipe is to help give the turbo unhindered airflow, swapping out your factory downpipe is also going to give you more sound, too. And since this particular downpipe is an off-road or uncatted downpipe, you can expect an even louder result. And speaking of this being an off-road option, keep in mind that it's probably best to have a hand-held tuner or have a reprogram after the install since you are removing the cat here. The Borla downpipe is a touch more expensive than other options that are on the site right now, costing just under $500. But it's one of the only full three-inch options out there, meaning it's got a three-inch diameter from start to finish, and it gives you that adapter if you need it. Another thing to point out here, the less expensive options on the site have the flux pipe position in a different location than the more expensive options do. They have it more in line with the pipe, while options like the Borla here have the flex pipe sitting more horizontal. If you think about it, the inline 2.3 that the EcoBoost has is going to be moving left to right, so I think this is a better placement for that flex pipe. When it comes to the install, luckily this isn't a bad one. You're probably looking at a few hours to get everything done, and you won't need anything out of the ordinary, just a few sockets and some wrenches, and a jack and some stands so you can get under the car. Overall, I'm going to call this a one out of three wrenches on the scale. So wrapping things up here, this is an off-road full three-inch stainless downpipe that comes with an adapter that you can use or not use, depending on your cat-back situation. And not only is this going to increase performance, but it's also going to open up some sound on the EcoBoost as well. So I'd be sure to check this out more for yourself online. I'm Stephanie, and for all things Mustang, keep it right here at

    More Power and Performance. Add even more horsepower and torque to the rear wheels of your turbocharged Mustang by installing a Borla 3" Off-Road Down Pipe. This Borla Off-Road Down Pipe is larger than stock and eliminates the power robbing stock catalytic converter to help release all the hidden power and performance your S550 EcoBoost Mustang has to offer.

    More Aggressive Sound. Borla's Performance Down Pipe not only helps increase power and performance, but it also adds a much more aggressive exhaust note to your S550 EcoBoost Mustang, when compared to the stock down pipe.

    Stainless Steel Construction. Manufactured from high quality T-304 stainless steel for superior strength and corrosion resistance, this Borla Down Pipe features ultra smooth mandrel bent 3" diameter tubing to improve exhaust flow for more power.

    Required Upgrade. For proper operation and maximum power potential this Down Pipe will require reprogramming the vehicles computer. AmericanMuscle recommends a Bama custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

    Application. The Borla 3" Performance Off-Road Down Pipe is designed to fit all 2015-2018 EcoBoost Mustangs. This Borla 3" Down Pipe can be install with a matching Borla Cat-Back or the factory 2.25" exhaust with the use of the included step-down adapters.

    Technical notes. Not legal for use on pollution controlled motor vehicles; intended for off road use only.

    Fitment: 2015 2016 2017 2018 Details

    What's in the Box
    • (1) Off-Road Down Pipe
    Installation Info
    Tech Specs
    Down Pipe Specifications
    Piping Material: Stainless Steel Piping Size: 3" (includes step down adapter)
    Catalytic Converter: "No" - For off-road use only Type Cat-Back Required: 3" or 2.25"
    - Fitment: 2015-2017 EcoBoost
    Will it fit my Mustang?
    • EcoBoost - 15, 16, 17, 18

    People Who Bought This Item Also Bought

    Most Helpful Reviews

    Ecoboost mustang

    It would be better if they included a clap when u hook it up to the exught when u have a stock exught its super hard to put on but other than that i have a roush intake this downpipe and a bama tune i ...

    Read More
    Helpful (4)

    Great item goes great with borla atak catback

    I had the borla atak installed on my 2015 ecoboost and I wanted an even better sound and this did the trick it turns everybody's heads. Borla did a great job I recommended this item

    Helpful (2)

    Overall Rating 4.9 out of 5 stars
    Read All 8 Reviews

    Customer Photos

    You Might Also Like

    23 Questions / 7 Answers

    Ask a Question

    Will this Borla Downpipe fit with the Ford Performance by Borla Sport cat-back with gt350 lower valance?


    • Hello! The Borla Downpipe - Off-Road will work with the Borla Sport Cat Back with GT359 Lower Valence.


    Helpful (1)

    Hi, I was wondering if this downpipes would fit with the mbrp race cat-back exhaust?


    • The Borla Downpipe would be compatible with the MBRP XP Series Cat-Back Exhaust.

      Rob D

    Helpful (0)

    Just to make sure, does this delete the resonator? I have a Roush axle back does it fit and work perfectly with it?


    • The Borla Downpipe will fit with your Roush axle back with no issues. This will install before the resonator and will not delete the resonator.

      Rob D

    Helpful (0)

    "Technical notes. Not legal for use on pollution controlled motor vehicles; intended for off road use only." Does this mean that it won't pass nc inspections?


    • This Borla Downpipe does not have catalytic converters and they would not pass NC emissions.


    Helpful (0)

    Does this downpipe come with an extra mount for an aftermarket wideband gauge? Will this work with an SCT unleashed tune as well?


    • The Borla Downpipe can be used with tunes from Unleashed as long as they are set up for an off road down pipe. This does not have an additional O2 sensor bung for using a wideband O2 sensor.

      Rob D

    Helpful (0)

    Will this work with a Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)?


    • This down-pipe will be able to work with the outlaw series exhaust yes!


    Show 1 more answer Helpful (0)

    More Products You Might Like

    Customer Reviews (8) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Afternoon

    • Loudness / Volume 4.571429 4.6
    • Exhaust Note 4.714286 4.7
    • Fit & Finish 4.571429 4.6
    • Bang For Your Buck 4.857143 4.9

    • 5/5

      Installation Time: Afternoon

      December 07, 2016

      Ecoboost mustang

      It would be better if they included a clap when u hook it up to the exught when u have a stock exught its super hard to put on but other than that i have a roush intake this downpipe and a bama tune i have it on race mode you can feel the big pull on the take off feels so way mucho more faster i highly recommend this i have it with my stock exught still it feels awsome and sounds a bit different


      Year: 2016 Submodel: Ecoboost

      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      May 22, 2016

      Great item goes great with borla atak catback

      I had the borla atak installed on my 2015 ecoboost and I wanted an even better sound and this did the trick it turns everybody's heads. Borla did a great job I recommended this item


      Year: 2015 Submodel: Ecoboost

      Helpful (2)

    • 4/5

      Installation Time: Afternoon

      May 02, 2016

      It's a borla duh

      Yet again borla comes out with a very great piece of work direct bolt on, no hassle piece, this time for the new ecoboost 2.3 turbo and man does it change up the torque curve and sound of this already amazing motor. Tie this together with a cold air and a tune and your elk on your way to being a 5liter eater.


      Year: 2015 Submodel: Ecoboost

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      April 27, 2017

      Great sound. More power!

      I bought this product to go with my Borla Stinger cat back exhaust that I had previously purchased. It's definitely loud enough when you get on the throttle and sounds great at normal acceleration too. I don't think I've ever heard a 4 cylinder produce this deep of a sound. I've read several issues with people having a burning oil smell at idle and mine did this same thing. There is a Ford TSB that corrects this issue. If it's a 2015-16 model they make an updated crankcase vent oil separator that replaces the one on your car if yours falls into a certain criteria. Mine had the old style installed. I ordered the parts from a dealer and had my personal tuner install them. Not a bit of smoke now. The TSB number is TSB 15-0192. Hope this helps. Will save you a lot of frustration.


      Year: 2016 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      September 08, 2016

      Excellent Build Quality

      When I first opened the packaging for the downpipe, I immediately noticed that it had perfectly formed welds with heavy gauge metals at its structurally reinforced areas. I can tell that longevity and durability will not be an issue with this pipe. Installation was standard, but the power and torque gains are significant and noticeable, not to mention the power arrives earlier in the RPM range as the DP allows the turbine to actuate the compressor faster and more efficiently. Make sure that you tune your Mustang accordingly, as removing the catalytic converter puts you at risk for over-boosting, and the O2 sensor will throw a CEL. Because the DP is unprotected by catalytic converters, you may notice the exhaust gas appears to be full of oily smoke. This is not to be of tremendous concern, the cat' normally filters out this smoke from the exhaust. The best way to eliminate this is with a proper tune, and an oil catch-can or separator. I would absolutely recommend this to anybody looking to add a little power to their Ecoboost and release the sultry sounds of that turbo spooling into the ambiance where it belongs.


      Year: 2016 Submodel: Ecoboost

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      December 21, 2017


      Install is Farley easy and will not take much time! Will be really easy if you have an extra hand to help due to the fact that when unbolting the o2 sensors it will be a struggle alone. Keep in mind i have the full Borla ATAK catback for my Ecoboost, so when i added this down pipe the sound was a ridiculously loud difference which I’m in love with. It will break a lot of necks and will get you in trouble with the cops so be warned haha. Great product and love the result!


      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      August 25, 2017

      GOT BOOSTED!!!

      Amazing performance gains hp and aggressive sound!


      Year: 2016 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      August 22, 2017

      Borla downpipe

      The downpipe is great I love the rumble it adds to my car. I would recommend this to anyone.


      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    Related Mustang Categories