So far I'm trusting the service manager Mark Leslie at University Dodge in Davie, FL. He seems to know his stuff and drag races himself. I don't remember if my exhaust was welded or clamped on. I'm gonna assume clamped if it fell off already. I think I'm going to blame the big bad MDS system for creating a sonic frequency that knocks off exhaust. I heared by disbabling it you get 30mpg, can use 2nd prime on upshifts, run low 13's in the 1/4 and tow 15k pounds in overdrive at 70mph!