Quote:
Originally Posted by Terraphantm
Front calipers are the same. Carriers are the same as the ZCP/CSL (i.e sized for the 345mm rotors). To use non-CSL/ZCP rotors, you need to retain the stock M3 carriers.
Rear calipers and carriers are different (pistons are 46mm instead of 42mm). They will fit the M3, but would move the brake bias significantly rearward (and thus would not be recommended without the front 345mm rotors)
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Are the rear carriers / brackets the same between the e46 m3 and z4m?
I have a set of e46 m3 rear brackets for the 996 calipers and I'm wondering if I can throw these onto the rear of the z4m.