Impreza WRX/RS G3 Hatch PFL Flow-Lock Rear DiffuserSuits Impreza WRX RS G3 Hatch PFL (Narrow Body) Models INSTALL DOES NOT REQUIRE BUMPER REMOVAL Details Here at Flow Designs we understand that Subaru enthusiasts love their exhaust modifications, which is why we've designed both, single (Option A) and dual exit rear diffusers (option B). The rear valance and diffuser fins will clear your Impreza WRX or Impreza RS G3 Hatch PFL single or dual exhaust tips with ease. The Flow Lock interlocking system