I've been trying to get some research on different programmers. I have read a few post already. I have a stock 07 GT,and I'd like to get a programmer so I can get better throttle response.Also when I change my wheels I don't want any problems with the speedo. After a while I do plan on doing more upgrades, so I need one that I can change multiple times. Any idea's on which programmer I should go for if any?