Originally posted by Hrtatac1:
I tried that but then the cel light started coming on.



this might be because you dont have mil eliminators. You can tune it back to stock and get mil eliminators or just get a new tune. the xcal can read check engine lights. Post whatever number it gives you, but I bet it is the rear o2's

Originally posted by Who the F are You?:
does your family tree not have any branches on it?

99SVT 235hp @ 6550rpm 212tq @ 5350rpm