I agree with what you guys are saying, but thats why im going to listen to my tuner and get a motec because i know that he has had a lot of experience on these ecu's. As for the power fc i know that they are ok for a bit of power but when you start going for bigger power you have to change afm and i also heard that not all injectors work on the power fc. My tuner was telling me that he has found many problems with the power fc in the rb25 neo. Is this correct?