I see a lot of people posting about 5 star tunes. What gains are you seeing on the 6.8 Ford v-10? I have the 2v version in my Excursion. How easy is it to use and can you still use regular gas? Or do ...
I run a 5-star tune with 3 custom tunes, one 87 performance, 87 tow, 89 tow. To reprogram its as simple as turning the key off and on, selecting the tune you want and follow the on screen display.
The biggest difference as shadows4 pointed out is the transmission shift points. Well worth the money.