Borla 3.0inch S-Type Cat-Back Exhaust System

2015-2020 Subaru WRX & STI

Ships for free in the 48 states

SKU: 140595

In Stock

Ships within 24 hours

Upgrade the way your aggressive 2015-2020 Subaru WRX or STI sounds with the Borla 3” S-Type Cat-Back Exhaust System, available at Subispeed!


  • Direct fit for the 2015-2020 Subaru WRX & STI
  • Pipe Diameter: 3” split into dual 2.25” muffler
  • Tips: Dual Round Rolled Angle-Cut Long
  • Exit: Dual split rear exit
  • Full 304 stainless steel mandrel-bent construction
  • Comes with provided clamps and hardware to make this an easy installation

Give your 2015-2020 WRX or STI an Aggressive Exhaust Note

The Borla 3.0” S-Type Cat-Back Exhaust System for the 2015-2020 Subaru WRX & STI cat-back exhausts allows your entire system to breathe easier, providing horsepower, torque, and a rich exhaust tone. Stainless steel construction, an easy install, and dyno-proven gains, these exhausts are Borla's solution to your stock system's lack of aggressive tone with an added performance bonus.

Outstanding Build Quality

For a good balance of price and performance, Borla’s Exhaust is constructed with high-quality SUS304 stainless steel, CNC-machined flanges, and manufactured with a polished finish. Each system features mandrel-bent stainless-steel piping for maximum exhaust flow and reduced back pressure. These exhausts are engineered to produce strong mid to top-end power gains, as well as an increase in horsepower and torque.


  • 2015-2020 Subaru WRX
  • 2015-2020 Subaru STI

5 customer reviews

Average rating
(based on 5 reviews)
Ease of Installation
Fit / Quality
Overall Satisfaction
  1. Great Choice for WRX Daily

    By Joel May 23, 2022

    This exhaust hits the nail on the head for a daily driver. Gives you way better sound than factory exhaust under throttle yet has virtually no drone at highway speeds (even with the windows up and radio off). Highly recommended if you want something more aggressive but also won't give you a headache.

  2. WOW

    By Manny August 7, 2019

    There are many exhaust out there, but this is the one. This was my first performance modification on my 2018 STI and wished I would have done it sooner, deep aggressive tone when you want it, no drone and quiet at highway speed on cruise control. Cold Starts sound amazing and I have noticed smoother run through the RPM's, especially past 5.5K.

  3. Best STI Catback

    By Dalton July 30, 2019

    After months of searching and listening to sounds clips on YouTube, I finally decided on the Borla S-type for my 2017 STI. The fitment was perfect, mated right up to the stock downpipe and fit nicely on both sides of the bumper. The sound, the sound is INCREDIBLE. I have never heard a muffled catback that sounds so aggressive under throttle. It is LOUD! But even after 2 years cruising on the high at any speed produces zero drone whatsoever. I would highly recommend this catback. Listen to some sound clips on YouTube compared to other systems and decide for yourself!

  4. Money well spent!

    By Eric January 16, 2018

    I would rate satisfaction at 10 if i could, absolutely love this cat back system! Deep, aggressive tone all the time, but just subtle enough to not attract too much attention. My WRX roars when i put my foot down, it puts a smile on my face every time i drive. I would highly recommend this to a friend.

  5. Wonderful

    By Joseph May 10, 2017

    Had this catback exhaust installed professional, required some welding to get the tips in the right spots without touching the bumpers. Aside from that, it sound wonderful. The interior cabin sound is very similar to the stock system, which if you pay attention to is actually quite loud and does tend to drone by itself. However this exhaust changes that it makes it sound closer to a rally car in all honesty. It sounds beyond wonderful, minimal drone if any at all, not really loud, but when you give it gas you remember you have an exhaust. The car should have come from the factory like this. Do yourself a favor, buy it and you won't regret it.

  6. Awesome

    By Mike April 5, 2017

    This exhaust rocks. Absolutely zero drone in the cabin. Nice low growl at idle, and sounds great past 4k rpm. It came packaged really well, and took about an hour to install with out a lift. If you are looking for an exhaust that will not draw too much attention to cops, but are looking to take that next step in mods for your car. This is the one.

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