I know I'm going to get majorly flamed for this, but what the hell, I can't figure out what all this fuel stuff is for the life of me. Can anyone point me in the right direction to understand what FMU / VAFC / BTM is? I've tryed searching, but when 500+ post come up about the subject and the majority of them are forsale ads, it gets a little frustrating... I'm trying understand what my possibilities are for a boosted OBDII motor. Thanks alot, and feel free to flame me, cause I know its gonna happen.