I am buying a 6.0 LQ4 from a buddy that has it already tuned and ready to go. He is swapping to a stock LS1 and keeping all of his computer/harness stuff. My questions are:
1. He says he can transfer the tune to my computer I just have to buy the credits(HPTuners). I want to buy HPTuners eventually, would it save little more money in the lnog run if I bought it now and copied his tune? Would that allow me to tune it whenever I wanted to with HPTuners?

2. He had a DBW set-up and I am going with DBC, can all he DBW stuff be taken out of the tune?