Alpina_B3_Lux, I have a question for you. I have narrowed my choices of a BBK down to the ST 60s and the PFCs (from www.bimmerworld.com/
- fortunately I can get a good deal.) The PFC BBK (ZR31) for the 335 have 355mm rotors in the front and 371mm (not a typo, that ~is~ 37.1 cm) in the back. Do you also have the rear BBKs from PFC? If so, by chance do you know if they fit BMW style 189 wheels (18" x 8.5" ET 37)? This is a consideration for me in my decision - to swap calipers for summer and for winter (at least for the rear axle) as my car is used year around.
Edit: I would like to note that brake bias can be changed by using different pad compounds front to back, i.e. using Pagid Yellows in front, Pagid Orange in back, or PFC 06 vs PFC 01 vs PFC 08 etc.