I got my tune from Lyndon at Westers garage in canada. I basically told him what I had over the phone and he changed my shift points, my gas mileage went up and it ran a hell of a lot better.He did this thing with my tow haul where it keeps in gear longer so I can race people. I like to call it race mode. It was simple he sent me the ecm and I pulled the one from my truck and sent it back. Price was a little steep but I think they all are.