Originally Posted by badfish
I confirmed with Stoptech today that they will be releasing a 355x35 front kit for the M3 sometime around January. Also, they have seen 18" Volk TE37s clear the 380mm kits before as well. But the 355mm kit is designed to fit in an 18" wheel so this is probably your best option.
That is good news. Hopefully they will fit the OEM 18's as well.