Originally Posted by dblock2151
^What about incorporating M5 Front/Rear BBK? I'm not sure if the rears are any bigger, but you can always do the Brembo BBK in the front and the M5 BBK in the rear.
The rear caliper on the M5 is a large single piston that also incorporates the electronic e-brake setup. We will figure something out, I'd like to have 4 matching if possible.