Help, my exhaust is killing me.

i am also getting this same issue in my /6. i walked in to work today and it's as if i was just sleeping in a closed tent of exhaust fumes. i stink. i looked underneath and the exhaust pipe only extends about 3 inches off the muffler so that is an easy fix. i'll try that and see if it fixes it but i will be watching this thread for more info. do the same issues that apply for a V8 apply for the /6? i believe everything on my motor is stock but not sure. i'll look into everything tonight. car runs good albeit a bit sluggish when warming up. exhaust smells worse with windows open and when i slow down it gets worse still.