MRT Extreme Cat Back Exhaust for MRT J-Pipe Only (92P117) - 2015-2021 Subaru WRX & STI
Take your Subaru WRX or STI to the next level with the MRT Extreme Cat Back Exhaust designed specifically for use with the MRT J-Pipe system. Built for enthusiasts who want maximum sound and performance, this system delivers an aggressive, always-on exhaust note that commands attention everywhere you go.
Constructed from premium T304 stainless steel with full 3 inch mandrel-bent tubing, this system is engineered to maximize exhaust flow and performance when paired with MRT’s turbo-back setup. The straight-through design combined with MRT’s Drone Management System (DMS) helps deliver an aggressive tone while keeping drone at a manageable level. At idle, the system produces a deep, powerful rumble, and under wide-open throttle, it unleashes an extreme roar that perfectly matches the WRX and STI performance pedigree.
Features
- Designed exclusively for use with MRT J-Pipe and mid-pipe system
- Extreme, always-on exhaust tone with aggressive character
- 3 inch mandrel-bent tubing for maximum exhaust flow
- Straight-through muffler design improves power and efficiency
- Integrated Drone Management System (DMS) for reduced cabin drone
- Quad 4 inch double-wall polished stainless steel tips
- Optional Black Ops matte black tip finish available
- Constructed from corrosion-resistant T304 stainless steel
- Engineered for use with MRT turbo-back exhaust components
- Direct bolt-on design for straightforward installation
- Engineered and manufactured in the USA
- Limited lifetime warranty
Additional Notes
- Loudness rating: 6 out of 10
- Drone level: 2 with DMS for controlled cabin sound
- Performance rating: 8.5 out of 10
- Must be used with MRT J-Pipe and mid-pipe system only
- Not compatible with factory exhaust components
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

