theres a little grey round switch with a v notch in it and when you turn it you can see different numbers, i think 0-9 or 1-9 not to sure well if you turn this in circles to different numbers what is it doing. this is on the outside of the utec on the bottom i think, thanks

 

that is simply adjusting what map the utec runs. your stock map will be 0 while 1 will be the intake and exhaust map that comes with the utec. some of the other numbers are a valet map and a safety map but im not sure which numbers they are.