I have one for my 02 7.3 f-250. it is a great starter but you will soon want more. i went with the edge juice w/ attitude combined with the evolution they have made me very happy with the performance of my truck. the good thing about the evolution is you can retrieve codes and clear them if needed.
the down fall is you dont have boost level on the fly. it takes a few minutes to program. and you dont have exhaust gas temp gauge with the system. the edge attitude has that and more as far as gauges go. you get egt, boost, rpm, and back down all in one. if this is your first kit i would save for the edge juice w/ attitude or something that comes with gauges if you are on a buget. like i said earlier the both work great together but if i had a choice it would be juice /w attitude first.