REMARK Catback Exhaust. Subaru WRX / STI GR Hatch. R1 Spec Single-Exit StainlessSingle Exit Catback Exhaust System for Subaru Impreza WRX STI (GR) Hatchback [08 14]. Designed and manufactured for the hardcore enthusiasts. Inspired and designed for the track ready Subaru Impreza WRX STI (GR) Hatchback [08 14] Important This will only fit models that have the dual exit, quad tip OEM exhaust. If your original rear bumper is designed for a single exit exhaust, this unit will unfortunately not fit. " This car has a whiteline sway bar