sarneson91
Full Access Member
anyone have any specifics on the differences between the normal 91+ tune and the tow/sport/haul ass mode? Is this an option that is automatically installed when you get the tune from BB and install it? I just ordered my autocal a couple days ago and am waiting till I get back from deployment(soon) to get a couple things installed then get the tuning process going. I'm sure it's not a huge difference just want to surprise my buddy in his hemi if thats even possible. I feel like there's potential in this engine that GM just didn't want to release from the beginning. Thanks for the help.