hey all...i hate to repost this but i can't beleive noone has any ideas on this problem...i've tried to help everyone out as much as i can but i need some help now..i'm sure someone has had this problem...HELP

96 zetec gl.dynomax exhaust(self bent) KKM intake..Bridgestone Potenza RE-910's...other mods also
87' Ford Thunderbird..Now my daily driver ( the wife uses the contour mostly) true dual exhaust with the super mystery mod.(hey there not even there!) tinted windows and stereo upgrade. the $200 car is starting to be a great car