This is why it is hard to be nice to you. I would have loved to help you (I even posted my tuning tips on ttzd) but your not on it. Basically it seemed like you thought you were on another level... :-) Your car however sounded bad - at that point you coulda showed us this "exhaust" problem. Dallas is a tough crowd because most of them are the founders and your still a newb to us. This is my opinion on the whole thing.
BTW - I was the one with the FMIC. I woulda showed you my combo then as I already had an emulator running my car but you didn't seem to talk to anyone.