I was wondering if anyone could possibly help me out on this strange noise that i have been trying to figure out for about 6 months now. I have posted this topic before but with no luck. My contour makes a quick rattle/grind sound when I give it gas from a complete stop or a slow roll in second. Im sure that someone can tell me what i need to do to fix it. Its been driving me crazy and you can hear it outside from the car. Whatever it is, it does not affect performance/shifting what so ever. Ive been thinking that somthing is just loose like a heat shield but i cant seem to figure the bug out. Thanks in advance for any help.

Midnight Red 95 Contour SE 5 speed, fully loaded. kkm M.A.F. adapter w/ K&N ru-3530, single Magnaflow muffler w/ no res. 2.25" custom catback exhaust, grafite painted stock 95 SE rims on bfgoodrich touring T/A's, 35% window tint around.