I know my question is going to be pretty generic but I thought I'd ask here first.
My overall goal is to help out my buddies 99 Camaro Z28 to get as much power out of it as I can. As of today, I just want to get used to the user interface & look it over with some real-time data from my car. Knowing that, what would you purchase? I was thinking of the MPVI2 interface with no credits, but I wondered how someone else in my position or others with knowledge about this felt about this choice.