1 2
  • Photo - Primary
  • Photo - Primary
  • Photo - Close Up
  • User 3
  • User 1
  • User 5
  • User 3
  • User 4
  • User 2
  • User 9
  • User 2
  • Photo - out of package
  • Logo Image

Mishimoto 2015 Subaru WRX 3in Stainless Steel Cat-Back Exhaust

Mishimoto 2015 Subaru WRX 3in Stainless Steel Cat-Back Exhaust

MISMMEXH-WRX-15

$1,326.95
$1,326.95 $1,460.00
Request Price Match
  • Fully secure checkout
  • Trusted by thousands
  • Rated and reviewed
Mishimoto is proud to release the Performance Cat-back for the 2015+ Subaru WRX/STI. The biggest complaint is the stock cat-back exhaust systems lack of aggressiveness. By installing the Mishimoto Performance Stainless Steel Cat-back, the exhaust system is able to breathe easier, providing horsepower, torque, and a rich exhaust tone. After comparing many different muffler sizes and designs, the Engineers at Mishimoto chose oval mufflers which prevent highway drone, but still provide an aggressive exhaust tone. During dyno pulls with the 2015 WRX w/ CVT, Mishimoto saw gains of up to 9 whp and 8 wtq using 93 octane fuel while maintaining safe AFRs on a stock tune (see additional images for dyno chart). This exhaust installs in under one hour and features quad 3.5" staggered double wall polished tips. The Mishimoto Performance Cat-back Exhaust provides an extremely aggressive turbo and exhaust tone under acceleration and boost, giving you that aggressive tone you have been looking for! The engineers at Mishimoto designed this cat-back as a four-piece design with precision TIG welded 304 Stainless Steel. This allows a smooth exhaust flow from the 3.0" 2-bolt exhaust flange all the way through the 2.25" y-section. To top it off, this cat-back includes two 2.25" V-Band clamps, a 3" exhaust band clamp, a new 3" 2-bolt flange gasket, and all stainless steel hardware, so you don't have to worry about your hardware rusting ever again! For 2015 WRX owners looking to get the most out of their WRX, this cat-back exhaust mates perfectly with the Mishimoto Performance Downpipe. The Mishimoto Cat-Back Exhaust is proudly made in the USA and comes with the Mishimoto Lifetime Warranty you know and trust.

This Part Fits:

Year Make Model Submodel
2015-2021 Subaru WRX Base
2015-2021 Subaru WRX Limited
2015-2021 Subaru WRX Premium
2015-2021 Subaru WRX STI Base
2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Limited
2019 Subaru WRX STI S209
2016 Subaru WRX STI Series.HyperBlue
2018 Subaru WRX STI Type RA
MPN: MMEXH-WRX-15
⚠️ Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Learn more »
Mishimoto 2015 Subaru WRX 3in Stainless Steel Cat-Back Exhaust

$1,326.95

FAQ

When does my order ship?

Most orders ship in 1–3 days, but some items may take longer due to demand and manufacturing delays. For urgent orders, please contact us to confirm stock before purchasing.

Are returns accepted?

Not satisfied? Return any item within 30 days. See our FAQ page for details.

Buy now pay later options available?

Yes. Pay later in installments with Affirm or PayPal Pay Later.

Do we offer price matching?

We’re happy to price match any legitimate listing from an authorized dealer, as long as the item is in stock and the price is current. We cannot match outdated or incorrect discounts based on old MSRP, since those prices are often errors the competitor cannot honor.