Hello all,
I just wanted to give an update on this post, it has almost been a year. This spring, I have finally put the m220s on the pre-LCI e90. It's a great fit! Wheels are flush and I am very happy about how it turned out!
Hopefully this will help others who are curious about this setup:
Stock suspension
Continental DW Front: 235 35 19
Continental DW Rear: 265 30 19
m220 19 wheels