The fronts require 1 of 2 routes for mounting, of which I chose the cheaper of the 2 given that I'd already spent s bunch of money on other aspects of the brakes. Your first option is to find a machine shop that can mill 13/64" of material from the caliper side of the stay bracket as shown below. Your other option is to visit Burkhart-engineering https://burkhart-engineering.com/epa...Products/54170 and purchase their custom made bracket set for CSL/Z4M 345mm diameter rotors. You won't find anyone who makes a custom bracket to accept factory 325mm rotors unless you commission someone.
TITANSILBER/NATURBRAUN
"Drive slow and drink milk."