As some may know, i just picked up an 04 GTO. Love the car so far, except for the fact that i took it to trails tonight to see what it would do, and only ran 14.6 @ 97, while getting spanked by a friends bone stock 3 valve gt lol. From what ive been told, its a good possibility that when the dealership filled it up, they put 87 in it which could hurt a little, as well as needing a tune to get rid of the torque management crap. Any opinions on this as well as any other ideas what could get it running like it should? No i am not modding the car any time soon though. Also its an A4 car.
Thanks