Anyone have any more info on this topic? Rev c was right on the turn from 8.5 cr to 9.1cr I'm pritty sure yellows to pinks and also version 5&6 to version 7. Is it maybe version 7 ecu it needs?
I'm in same boat but with a RevB and a apexi PFC for a version 5&6 sti. Apparently I have to change around the cam and crack wires at the ecu. Anyone know?