Grimmspeed Cat Back Exhaust Non Resonated Subaru WRX / STI Sedan 2011-2021 Vehicle Model_FX35 Please confirm vehicle fitment as

Please confirm vehicle fitment as D770 replacement before purchasing

AN and OEM Style Adapter Fittings

Produces more accurate launches for drag racing and autocross

4inch to -0

Piping Diameter: 3 inches

Grimmspeed Cat Back Exhaust Non Resonated Subaru WRX / STI Sedan 2011-2021 Vehicle Model_FX35 Please confirm vehicle fitment asWith so many catback options available, our goal was to create a unique, refined sound in an extremely high quality system. We've been casually referring to it as the gentleman's catback around the shop, to ensure that our mission wasn't lost in all of the craziness. We also wanted to produce a single system that would fit as many models as possible. Using a unique hanger design and by including a set of four custom polyurethane hangers with each kit,