The MRT WRX Extreme Cat Back is our loudest and baddest-sounding exhaust system that is always "on." with a loud, deep muscle car sound. Handcrafted in corrosion resistant T304 Stainless Steel for use with the MRT J-Pipe ONLY for the Subaru WRX/WRX STI.
When you upgrade your stock Subaru to the Extreme Cat Back system, you will turns heads and get noticed every where you go.
This system is engineered for the best sound to match your WRX and provides increased performance from increased exhaust flow. It connects only to the mid-pipe of the
MRT J-Pipe (without Catalyst) and Mid-Pipe components of our Turbo-Back Exhaust System for the 15 - 16 WRX. The
MRT Extreme Cat Back exhaust has enough elevated sound to
Get Noticed, plenty of opportunity to
Feel the Performance and packaged in a design without excessive drone (features the MRT DMS, drone management system, to help reduce drone noise to an acceptable, manageable level). Base systems include T304 polished SS quad 4" tips and 3" mandrel bent tube. Black Ops black matte tip finish is available for an additional fee.
Application: 2015 thru 2021 Subaru WRX AND WRX STI.
Use with MRT J-Pipe ONLY.
Hear the Difference ![]()
How does it sound? The MRT WRX Extreme Cat-Back for use with MRT J-Pipe ONLY #92P117 is the loudest and baddest-sounding exhaust that is always "on."![]()
Is there drone or resonance? Some managed drone.![]()
What if I step on it? Wide-open throttle brings out an extreme exhaust roar that screams "take no prisoners."
Are you located close to Plymouth, MI and need your MRT aftermarket exhaust installed? Call MRT at 734-455-5807 to make an appointment today!
How does it sound? The MRT WRX Extreme Cat-Back for use with MRT J-Pipe ONLY #92P117 is the loudest and baddest-sounding exhaust that is always "on."
Is there drone or resonance? Some managed drone.
What if I step on it? Wide-open throttle brings out an extreme exhaust roar that screams "take no prisoners."
