HKS Blow Off Valve Parts Super SQV4 Impreza GH8 EJ20X Legacy B4 BL5 EJ20Y Legacy Touring Wagon BP5 EJ20Y 07/06-11/11 EJ20X, 03/05-09/05 EJ20X,

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 Impreza Model: GH8 Engine: EJ20x Year: 07/06-11/12 "S-GT" Subaru Legacy B4 Model: BL5 Engine: EJ20x Year: 03/05-09/05 A separate φ19/L=500mm hose is required when used with R type intercooler. Subaru Legacy Touring Wagon Model: BP5 Engine: EJ20x Year: 03/05-09/05 When using with R type intercooler, a separate φ19/L=500mm hose is required. Please check the manufacturer's website for the latest compatibility information.