I installed the performance program into my car that superchips had preprogrammed into my programmer. my ? is if i want to go and firm up my transmission shifts a little more can i just plug it in and go to the part that asks how high you want to up the line pressure for the shifts or do i have to reinstall the stock program and then go and go through putting the performance program in and take it from there?

 

No, you wont have to reinstall the stock program. Just plug it in and go from there. It will basically ask/tell you what to do.

 

^^what he said

you just tell it what you want then it reprograms them in