Originally Posted by sith
hey guys.. i'm just running the stock v7 ecu and no tune in sight, and i need a replacement BCS what subaru BCS will work for a JDM V7 STI? is the 2.5 STi or WRX or LGT BCS the same?
A 3-port will operate in bleed (2-port) mode if hooked up that way, at which point it should act just like a stock BCS. Just put a filter over the unused port for safety.