

Borla S-Type Cat Back Exhaust
Subaru WRX/STI 2015+
Features & Product Details
RallySport Direct is proud to provide you with a great selection of Borla Exhaust Systems. These are high-performance exhaust systems designed to replace your factory restrictive exhaust system to add more power and performance while producing an aggressive exhaust note.
On this page, you are looking at the Borla S-Type Catback Exhaust System for the 15+ Subaru WRX and STI. This exhaust system combines larger piping diameter with smooth mandrel bends to produce more horsepower, more torque, along with improved throttle response with reduced turbo lag. It has been fabricated using fine quality materials to provide you with a lifetime worth of performance.
Here are the details:
Specifications
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REVIEWS & CUSTOMER MEDIA


Shipped in less than a week which was nice! The install process wasn’t to bad it was honestly harder to take off the stock exhaust then to install the new. Only thing was making sure there where no leaks had to use gasket maker to really get it sealed correctly other then that was really happy with the purchase. Thank you Rally Sport Direct for being a certified seller for borla!
Local muffler shop said it was the best fitting Borla system they’ve ever installed. Sounds amazing. Loud at cold start, has a nice low growl at idle and roars when you step on the throttle with some pops and crackles in there. Definitely makes heads turn. My kids love it and ask me to go fast all the time bc they like to hear the exhaust. I can tell it adds a little horsepower from stock. No drone in the cabin. Normal cruising with radio on you can barely hear it.
Sounds lovely but a bit too quiet. Borla did a great job on eliminating droning. The pops are so quiet that they're only barely noticeable. Overall I like it, just wish it was a bit louder especially the pops.
Sounds great, fit like a glove and I have zero regrets. It is loud at cold start but quiets down once the car warms up, sounds pretty badass.
Installed myself. Super easy, took my time and was about an hour or so. Sound is great!! Wrx is super responsive. A must buy!!
QUESTIONS & ANSWERS
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Q: 2021 STI? IAN H2 years ago
This should fit the 2021 sti, correct?
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A: Yes, this will fit the 2021 model year.
Lane H. @ RallySport Direct 2 years ago
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Q: Gaskets gmira132 years ago
I have a Cobb 3" downpipe. Will I need to replace the doughnut gasket? Or do I even need it since both are 3" ?
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Q: Borla #140595 STIlimited20203 years ago
What else do I need to install this exhaust ? Do I need gasket if yes can you give me part number ?
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A: You'll need a new donut gasket, GRM020099 will work for you.
Lane H. @ RallySport Direct 2 years ago
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Q: Stock 2020 STI yonnie517093 years ago
I just purchased a 2020 STI. Do I need anything other then a new donut gasket to install this axle back?
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A: Nope, just get a fresh gasket and you would be good! :)
Rick C. @ RallySport Direct 3 years ago
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Q: Fit HonestAbe10314 years ago
Is this cat back straight up bolt-on, or does it need an adapter for a stock 2019 WRX? Does it need any cutting of the pipe? I watched a video of someone that said they needed to cut the y pipes before the muffler in order to reduce rubbing. Thank you in advance.
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A: Assuming you're installing it with a stock exhaust, this should bolt up without any modifications necessary.
Marcus E. @ RallySport Direct 4 years ago
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