justin mcgrath knows what he’s doing. if i was going to have someone local road tune my subaru itd be justin or jay (jays05 on here)… justin datalogged my sti and jay and i smoothed the timing maps on it til it was where we wanted it. some cars like more boost… others like more timing. you have to find out which one your particular vehicle responds better to by testing it out on the dyno… not a whole lot of awd dyno’s around either.