HKS Valve Parts Super SQV4 Impreza GVF EJ257 GVB EJ207 GRF EJ257 GRB EJ207 Blow-off 10/07- 10/07- 09/02- 07/10- 71008-AF013

hks super sqv (sequential blow-off valve) is a blow-off valve that uses a unique two-stage sequential valve structure using a primary valve and a secondary valve, and uses a differential pressure control system to delicately control pressure in a wide operating range from low to high supercharging ranges. [Compatibility] Subaru WRX STI Model: VAB Engine: EJ20 (turbo) Year: 14/08 - Impreza WRX STI Model: GVF Engine: EJ257 Year: 10/07-14/08 "WRX STI A-LINE 4DOOR" Impreza WRX STI Model: GVB Engine: EJ207 Year: 10/07-14/08 "WRX STI 4door" Impreza WRX STI Model: GRF Engine: EJ257 Engine: 09/02-14/08 "WRX STI A-LINE" Impreza WRX STI Model: GRB Engine: EJ207 Model Year: 07/10-14/08 Please check the manufacturer's website for the latest compatibility information