Originally Posted by Milla Gorilla
what do u mean upgrade....
Out of the box the SC has performance tunes and the ability to change your WOT shift points for first and second upshifts as well as a few other things. If you upgrade you can tune every upshifts and downshift point for each gear as well as adjust the amount of tm in your shifts. The upgrade is well worth it if you want the ultimate control over your trans shifting.