We can flash your M3 via a personal handheld unit or by going to one of our dealers that carry our flash station.
Hand Held Flash unit. Currently on special till Feb 12th.
http://www.m3post.com/forums/showthread.php?t=634728
Flash stations (in red)
http://www.activeautowerke.com/dealers.php
If you have any questions please let me know I would be glad to help.