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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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