well i was planning on using the AEM fuel management but pretty pricey,
depends, but i am buying a new clutch when it gets turboed, and exhaust is about 2 1/2 inches. The reason for internals is because i plan on turning the boost up to 15+ later on. I just want to be ready for the higher boost. For tuning, cant I just use the SAFC and have the pros do that for me?