Originally Posted by NAVYPB
I had a similar issue on my 04 m3 and took it to the dealer. They could not find anything and said not to worry about it. Took it to an Independant shop in the city. 5 minutes they found a lose bolt from exhaust touching frame or something...can't remember details but they tightened it up and vibration gone and they did not even charge me. So maybe something from exhaust loose? Hope this helps
Thanks, I'll get it check out on a lift by the guys at ACM asap. From what i can tell from lying underneath the car i see nothing out of the norm, of course those guys would be able to spot something wrong faster than i can.