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

Mishimoto
MISMMEXH-WRX-15
748354019100
Catback
20 Units In Stock - Ships Next Business Day
$ 1,460.00 $ 1,326.95
$ 1,326.95

SKU: MMEXH-WRX-15 | UPC: 748354019100

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

Mishimoto Performance Cat-Back Exhaust fits 2015-2021 Subaru WRX and STI models. This system replaces the restrictive stock exhaust for smoother flow, delivering dyno-proven gains of 9 wheel horsepower and 8 wheel torque on a stock 2015 WRX CVT with 93 octane fuel. It produces an aggressive turbo spool and deep exhaust tone under boost without highway drone.

Key Features

  • Power Gains: Dyno-tested increases of 9 whp and 8 wtq on stock tune while keeping safe air-fuel ratios.
  • Construction: Mandrel-bent 3-inch T304 stainless steel tubing with precision TIG welds in a four-piece design for optimal flow from 2-bolt flange to 2.25-inch Y-section.
  • Muffler Design: Dual oval mufflers reduce drone on highways yet amplify aggressive tone during acceleration.
  • Exhaust Tips: Quad 3.5-inch staggered double-wall polished tips enhance rear appearance and sound exit.
  • Hardware Included: Two 2.25-inch V-band clamps, 3-inch band clamp, 3-inch 2-bolt flange gasket, and stainless steel bolts to prevent rust.

Product Notes

  • Direct bolt-on replacement installs in under one hour.
  • Mates directly with Mishimoto Performance Downpipe for combined exhaust upgrades.
  • Emits rich turbo and exhaust sounds under full throttle and boost.

Installation Notes

  • Professional installation recommended.
  • Bolts to stock downpipe or cat using included 3-inch 2-bolt flange gasket.
  • All clamps and stainless hardware provided for complete no-cut install.

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
2020 Subaru WRX STI S209
2016 Subaru WRX STI Series.HyperBlue
2018 Subaru WRX STI Type RA

Why Choose Mishimoto?

  • Made in the USA from premium T304 stainless steel.
  • Engineered for maximum horsepower, torque, and sound quality.
  • Protected by Mishimoto Lifetime Warranty on every component.

Frequently Asked Questions

  • Q: Does this exhaust fit 2015-2021 WRX and STI models?
    A: Yes, it is a direct bolt-on for all listed Subaru WRX Base, Limited, Premium and WRX STI Base, Limited, Launch Edition, Series.HyperBlue, Type RA, S209 submodels.
  • Q: What material and finish does it use?
    A: Full T304 stainless steel construction with polished double-wall tips for durability, corrosion resistance, and show-quality shine.
  • Q: What warranty covers it and how long to install?
    A: Mishimoto Lifetime Warranty applies. Direct-fit design installs in under one hour with provided hardware.

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Single reinforced box 40.25 x 15.75 x 11.5 inches
  • Weight: 28.5 lbs
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