If you want to upgrade, but worry the vibes will be too much do the M3 MM.
The vibes though from the BW MM, at speed are actually kinda sexy. It just sounds and feels a bit more race like compared to OEM, but it's really not over the top unless you are sitting in stop and go with your AC on. Then it can be pretty annoying
05 ZHP, Epic tuned s54, Euro headers+Sect.1, Dinan 3.91 and a lot of other things