the 05's dont shift that great just ask anyone with one and the throttle responce is horrible in my opinion or at least on my truck so Im hoping with firmer shift points it'll do something but Im just gonna have to wait and see. As for the price I bought mine for $555.00 but I know you can possibly get them cheaper though it depends on where you look. Ive heard rumors of used ones floating around here for $235 but its just to easy to ripped off by someone selling a used one because once you set it to your truck it wont work on another truck untill the programing is taken out of the original truck and everything about the 2 trucks have to be the same......