GrimmSpeed Cat Back Exhaust System (Un-Resonated) - Subaru WRX / STI VA WRX/STI Suspension This means a direct intake

This means a direct intake manifold connection is permitted

the FX400 disc engages very quickly and may chatter slightly in first and reverse

or other non-forced induction external bolt-ons

-Anodized oil catch can with integrated condenser and dipstick

Fitment Subaru WRX / STI 2015-2018

GrimmSpeed Cat Back Exhaust System (Un-Resonated) - Subaru WRX / STI VA WRX/STI Suspension This means a direct intakeWith 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,