umm. who did you hear that swapstar had a V2 RA ecu for sale from. i havnt heard that before.
also, where did you hear it knocks from? i run the mofo as my daily on 91 octane, and have not ever had knock.
if you dont have one, or havnt driven one (as most peopl have never laid their hands on a V2 sti-RA - mine is late model V-limited), please dont say random things.
if it knocked in my car, i wouldnt be running it. i run it waaay to hard on 91 octane.