hey i was wondering if someone could send some help my way. I installed a greddy evo 2 catback on my 05 sti yesterday. I drove it all last nite and today then all of the sudden the check engine light stays on and the cruise light is flashing. Anyone have any idea what this could be, i mean i doubt its related to the exhaust because i only did a catback and the cruise light is flashin and i cant seem to make it go off.