Originally Posted by T.Dot_E30
Yes, cross drilled and also they appear to be a floating rotor, they are 3lbs lighter(fronts only) and also cool better than normal rotors. But they are same sized unlike e46 m3 bmw performance ones, which are better than stock m3 rotors.
Part#s are: 34112282871 & 34112282872 for the fronts.
They are not listed on realoem.com
But you can find them here by part#:
or bmw usa(canads doesn't have anything listed):
The BMW USA site indicates it does require 18" wheels. That's what I was told when I looked into it at my parts dept. I run 18s for the summer but have 17" winters. I see that it also needs a caliper swap which I wasn't told by my parts guy, we didn't get that far in the conversation because I didn't want to run 18" winters and vetoed the idea after hearing about the rotors. They'd be awesome brakes though!