Ok. Today I took gasman for a ride in the M3 with the race exhaust installed. We were both commenting on how brilliant the system is. The one plus is that there is the obvious noticeable sound difference but the sound inside the cabin is not bad at all. Clearly a difference but not nerve wracking at All!!! You can still converse without having to change the level of your voice. Its a very comfortable drone but I was even joking saying they could have gone louder if they really wanted to. But its perfect!
2008 E92 M3
-Apline White-Fox Novillo Extended Leather, CL Trim
-Premium Package-Technology Package-CW Package
-M Audio with Enhanced Bass-I-pod/USB adapter
-19" Wheels-Rear Sunshade