MRT Extreme Cat Back Exhaust (92P114) - 2015-2021 Subaru WRX & STI
Turn your Subaru WRX or STI into a true head-turner with the MRT Extreme Cat Back Exhaust. Designed for drivers who want maximum sound and performance, this system delivers an aggressive, always-on exhaust note that brings out the raw personality of your turbocharged platform.
Built from premium T304 stainless steel with full 3 inch mandrel-bent tubing, this system improves exhaust flow and reduces restriction for noticeable gains in power and throttle response. At idle, you get a deep, commanding tone, and under wide-open throttle, the system unleashes an all-out roar that lives up to the Extreme name. Finished with quad 4 inch double-wall tips, this system offers both performance and aggressive styling, with an optional Black Ops matte black finish available.
Features
- Extreme, always-on exhaust tone with aggressive character
- 3 inch mandrel-bent tubing for maximum exhaust flow
- Straight-through muffler design reduces backpressure
- Improves horsepower, torque, and throttle response
- Quad 4 inch double-wall polished stainless steel tips
- Optional Black Ops matte black tip finish available
- Constructed from corrosion-resistant T304 stainless steel
- Designed to fit factory J-pipe for easy installation
- Compatible with upgraded MRT J-pipe and mid-pipe systems (WRX only)
- No tuning required for installation
- Direct bolt-on system for straightforward DIY install
- Engineered and manufactured in the USA
- Limited lifetime warranty
Additional Notes
- Loudness rating: 6 out of 10
- Drone level: 2, some managed cabin presence
- Performance rating: 8.5 out of 10
- Designed for off-road and race use only
- Fits factory J-pipe without modification
Fitment
- 2015 Subaru WRX 2.0L Turbo
- 2015 Subaru WRX STI 2.5L Turbo
- 2016 Subaru WRX 2.0L Turbo
- 2016 Subaru WRX STI 2.5L Turbo
- 2017 Subaru WRX 2.0L Turbo
- 2017 Subaru WRX STI 2.5L Turbo
- 2018 Subaru WRX 2.0L Turbo
- 2018 Subaru WRX STI 2.5L Turbo
- 2019 Subaru WRX 2.0L Turbo
- 2019 Subaru WRX STI 2.5L Turbo
- 2020 Subaru WRX 2.0L Turbo
- 2020 Subaru WRX STI 2.5L Turbo
- 2021 Subaru WRX 2.0L Turbo
- 2021 Subaru WRX STI 2.5L Turbo
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

