Originally Posted by M3 Esq.
This is what I would have thought as well, but according to Apex's website it says 17x10 will fit an E9X M3.
Here is a pic of my car with 17x10 et25 square, so I know that they do fit over stock E90 M3 brakes. The tires are R888 275/40/17. Apex also recommends the 17x10.5 for our cars. I think you should do it!