I took delivery of my 2009 AW M3 and couldn't be happier. I'm having BBS RG-R Black Diamond wheels installed Tuesday and heard that the offsets are not ideal. I plugged in the data at http://www.wheelsmaster.com/rt_specs.jsp
and it looks like the front will sit 14mm further out than stock and the back will sit 3 mm further out.
Can anyone advise on whether or not spacers are needed for that "flush" look?
BBS RG-R 19 x 9 Front ET20
BBS RG-R 19 x 10 Rear ET25
Tires: PS2s, 255/35/19 and 275/35/19
Also, any recommendations on spacers? Heard there may be vibration issues with spacer use.