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Borla Stinger S-Type Cat-Back Exhaust (15-18 EcoBoost Fastback)

Market Price $1,431.99 You Save 11% ($153.00)
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  • Item 387467
  • MPN# 140584

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Features, Video & Details

  • Loud Throaty Exhaust Note without the Drone
  • Y-Pipe and "S-Type" Stinger Mufflers Included
  • 2.25" Mandrel-Bent Stainless Steel Tubing
  • 4" Chromed Stainless Steel Tips w/ Embossed Borla Logo
  • Direct Bolt-On Design
  • Fits 2015-2018 EcoBoost Mustang Fastback

Review & Installation Video

Review & Install Video

Hey everybody, I'm Justin with This is my detailed review of the Borla Stinger S-Type Cat-Back exhaust system with Y-pipe available for your 2015 and up EcoBoost powered Mustang. You should be checking out the S-Type from Borla if you're after a quality system from a name like Borla, you don't mind spending a little extra to get that premium build, and finally and most importantly you want a deep aggressive tone for your EcoBoost. It's been my experience, guys, that there are generally two types of EcoBoost owners out there: Ones that would like to keep things as quiet as possible and ones that would like to hear a good amount of engine noise and turbo noise. As you guys heard with our sound clips earlier, the S-Type is definitely going to be on the little bit more aggressive side, but it's definitely not the loudest system we offer. This is one of a handful of offerings from Borla for your EcoBoost powered ride and is going to fall right in the middle between the Borla Touring, which is their milder of the three systems, and the Borla ATAK which is definitely their most aggressive. Comparing the S-Type to the more aggressive ATAK, I'd say the S-Type is going to offer a deeper more refined tone overall compared to the ATAK which is going to be a little bit more loud, a little bit more in your face. Overall the S-Type is still giving you a good amount of volume and you're still getting a good amount of turbo noise, which I personally enjoy. That being said, guys, on my one to five or one to wake the neighbors scale, I'm willing to give the S-Type here a solid three out of five, maybe even inching up to a four out of five overall. Again, you're getting some good amount of volume here. If overall volume is your number one goal then the ATAK would definitely be the better system for you. Let's switch gears a little bit and talk about the construction here with the Borla. If you've had a Borla system before, you know you're getting a premium product. As such, you are going to be paying top dollar. The S-Type falls right in line with that $1200 to $1300 price range which is definitely at the top of the food chain when it comes to EcoBoost Cat-Backs. However, you are getting what you pay for here, guys, 304 grade stainless steel throughout, two and a quarter inch mandrel bent tubing, the included Y-pipe, Stinger mufflers, all exiting out the large four inch polished tips embossed with the Borla logo. My one small nitpick here with the Borla systems is the diameter of the piping. Two and a quarter inch is a little small in my opinion for a turbo car. Personally, I'd like to see two and a half or two and three quarters or even a three inch system, especially when you're talking about a turbo application. That being said, it's not ultimately going to kill your performance. If you do plan on going all out later on down the road, you might want to consider a different system. All right, guys, on to the install. Thanks to the S550's new independent rear suspension, that makes catback installs a whole lot easier. Dropping the factory Cat-Back and installing the new Borla system here can easily be accomplished by anyone with a few basic hand tools and wrenches and basic socket set, guys. One out of three wrenches on my overall difficulty meter here. Maybe an hour or two in the garage or driveway from start to finish. Of course you are working underneath the car, so make sure you have your jack and jack stands ready to go or a lift or race ramps if you have those. You can do this by yourself. I will say an extra set of hands would be helpful in dropping the factory system since it is one piece and it can be a little cumbersome. Overall, you should be able to do this by yourself without any issues. In the end, guys, I really do enjoy the S-Type for the EcoBoost. You are getting a good amount of tone and turbo noise but without being totally obnoxious. Even better, it's completely quiet inside the car. Again, I'd like to see slightly bigger diameter piping here, but overall you're going to have a very hard time beating the quality and construction of a name like Borla. Be sure to check out a system for your EcoBoost powered Mustang here at

Aggressive Throaty Sound. Add an aggressive throaty exhaust note to your turbocharged 2015-2018 EcoBoost Fastback Mustang with a Borla Cat-Back Exhaust System that features a pair of Stinger S-Type mufflers and 4" embossed chrome exhaust tips. This catback not only sounds great, but also improves exhaust flow with the included Y-pipe for an increase in horsepower and torque. 

High Quality Construction. Manufactured from ultra smooth mandrel bent 2.25" diameter stainless steel tubing to improve exhaust flow, this Borla catback exhaust system includes an Y-pipe and features two straight-through "Stinger" mufflers with 4" chromed stainless steel tips that are embossed with the Borla logo for both aggressive sound and impressive looks.

Application. This Borla Stinger S-Type Cat-Back Exhaust System is designed as a direct bolt on replacement for the 2015-2018 EcoBoost Fastback Mustangs equipped with the turbocharged 2.3L Inline 4-cylinder engine. Not compatible on Convertible models.

Please Note. The included mufflers are 49 state drive-by noise legal, not intended for use in the state of California.

Fitment: 2015 2016 2017 Details

What's in the Box
  • (1) Right muffler assembly
  • (1) Left muffler assembly
  • (1) Y pipe assembly
  • (1) Right intermediate pipe
  • (1) Left intermediate pipe
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: Stainless Steel Tip Material : Chromed Stainless Steel
Piping Size: 2.25" Tip Size: 4.0"
Muffler Type: Straight-through Fitment: 2015-2017 EcoBoost Fastback
Will it fit my Mustang?
  • EcoBoost - 15, 16, 17

Not Compatible on Convertible Models

Most Helpful Reviews


Had this exhaust installed about a week ago. the sound is really impressive coming out of a 4 cylinder car. Not too loud where it is annoying but has just that perfect sound that gets attention when ...

Read More
Helpful (1)


After listening to several exhaust video clips I decided to purchase these. I am so glad I did! They are AWESOME! If you want a nice deep growl to your turbo then this is definitely the exhaust to ...

Read More
Helpful (1)

Overall Rating 4.7 out of 5 stars
Read All 6 Reviews

Customer Photos (4) Submit Your Photo

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8 Questions / 6 Answers

Ask a Question

There are multiple cat-back exhausts on the site that specify being exclusively for fastbacks. What is different about the underside of the convertibles that prevents these systems from working?


  • The convertible models have additional bracing and support that interfere with many aftermarket exhausts. This bracing is not present on fastback models.

    Rob D

Helpful (1)

Why this system doesn't meat the California's noise levels and the borla atak does it?


  • The S-type is actually louder at idle, where the ATAK is louder overall. This would be why, in this case, the ATAKs work in California as where the S-type does not.


Helpful (0)

Even though it is illegal in California, can I still purchase it? For track use of course ;)


  • Hello! Yes, you are still able to use this exhaust for track use in California, as long as it isn't driven on public roads!

    Doug P

Helpful (0)

Why is the system not intended to be used in California? Is it due to emissions or noise constraints?


  • The Borla Stinger S-Type Cat-Back Exhaust does not meat California's drive by standards for exhaust noise levels.

    Rob D

Helpful (0)

is the borla stinger s-type the same as the borla touring but with a Y pipe instead of a resonator?


  • Correct. The resonator on the Borla Touring helps to lessen the exhaust tone from the stingers to give you a quieter sound when driving.

    AM MikeW

Helpful (0)

How much hp will you gain from this mod


  • The Borla Stinger S-Type Cat-Back Exhaust can yield from 5-15hp with a tune and optimal conditions. With out a tune, you can expect lower yield around the 5hp range.


Helpful (0)

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Customer Reviews (6) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume 4.6 4.6
  • Exhaust Note 4.2 4.2
  • Fit & Finish 4.6 4.6
  • Bang For Your Buck 4.4 4.4

  • 5/5

    Installation Time: Less than 1 Hour

    December 22, 2016


    Had this exhaust installed about a week ago. the sound is really impressive coming out of a 4 cylinder car. Not too loud where it is annoying but has just that perfect sound that gets attention when accelerating. Sounds good at idle too. I have my own personal tech that works at a local repair shop install it. His specialty is custom exhaust so it was done in less than an hour and the chrome tips are lined up perfect.


    Year: 2016 Submodel: EcoBoost

    Helpful (1)

  • 5/5

    August 25, 2016


    After listening to several exhaust video clips I decided to purchase these. I am so glad I did! They are AWESOME! If you want a nice deep growl to your turbo then this is definitely the exhaust to buy. It's not noisy when driving at a steady speed but when you "get on it" they are there and don't disappoint! They have very nice chrome tips with the logo, too. Go Borla Stingers!


    Year: 2016 Submodel: Ecoboost

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    April 12, 2016


    Exactly what I expected. The videos are very accurate. Going from the stock exhaust to this is a great upgrade. A nice aggressive sound gets attention but not enough to the point where it is annoying. Definitely recommend.


    Year: 2015 Submodel: Ecoboost

    Helpful (1)

  • 3/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    June 30, 2017

    Borl Stiner S-Type Cat-Back Exhaust

    Not bad, but if you are expecting to get the throaty sound of a GT, it will not compare. However, it does accentuate the sound and increase the sportiness of the Ecoboost.


    Year: 2015 Submodel: EcoBoost

    Helpful (0)

  • 5/5

    Installation Time: Afternoon

    June 09, 2017

    Amazing quality and sound

    Installed this on my ecoboost and had great improvement for sound and somewhat hp. Love this brand and the tone of this exhaust. Defiently worth the extra money to pay for top of the line exhaust


    Year: 2015 Submodel: EcoBoost

    Helpful (0)

  • 5/5

    Installation Time: Less than 1 Hour

    July 02, 2015

    The Best Sounding Cat Back for EcoBoost

    This is by far the best sounding Cat Back setup for the '15 EcoBoost. Very aggressive when accelerating, yet quiet when cruising with NO DRONE!!


    Year: 2015 Submodel: Ecoboost Zephyrhills, FL

    Helpful (0)

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