Here is my post about the tires for BBS FI...
http://www.m3post.com/forums/showthread.php?t=816625
I must say that I have had problems on my ///M3 E92 (OEM suspension) with tires 295/30 R19 rear and 255/35 R19 front! The rear tyres rub the wing and front rub plastic locker when you turned the steering wheel!
Tires Michelin PS2...
Rear
Front
Now I use 285/30 R19 rear and 265/30 R19 front and I no have problems! The only minus is the small selection tires in the 285/30 R19 size.