My brother has a PPE tuner with economy tuners (?) in his 06 LBZ...he had mentioned that I would need to get it flashed to work with my 05 LLY. Any idea what he is talking about?
How old is the tuner? the new tuners will work in all years, mind you only in one truck at a time, but the older ones only work within there designed range (LLY, LB7,LBZ, LMM)