2003 cobra pulley swap, do I need to retune for it?
I have a 2003 cobra vert. I want to put a 2.8 pulley on it, but I just had it tuned. Will I need to re-tune for a pulley swap if I do it, or will it just add boost.
You need to tune it, anytime you have to compensate for boost. For that matter anytime you make any moification, that's going to change the fuel or timing tables. If you still have the stock EatonM 112 on it, I wouldn't push the boost level over 14lbs. or you'll just be blowing hot air, Mike. SCT Tuner.
2003 cobra pulley swap, do I need to retune for it? 
