So Do I.. I kept looking at my slip.. and as shitty as my 60' was.. 15.1 just didnt seem right when the NA supra in front of me ran a 16.1... I really hope its just a boost leak or something. What kills me is when I bought the car the owner was very upfront about everything and everything checked out. He also told me they had done a compression test previously and everything was good to go.. so when I bought it I never did one.. Now im thinking that was a huge mistake..