Fuji Racing Plug & Play 3 Port Boost Solenoid Fits: Subaru Impreza WRX STi 98-19
Subaru Impreza & WRX STi. Fuji Racing 3 Port Boost Solenoid Kit. 1 x 3 Port Boost Solenoid. If you are fitting this to a car originally has a 2 port solenoid, you will need an ECU tune for it to work correctly.