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      03-14-2012, 05:32 AM   #2
M3SQRD
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Drives: E92 M3s,R56 CooperS,F22 228iX
Join Date: Jun 2009
Location: EC

iTrader: (2)

I doubt it will be a direct bolt on for several reasons. The caliper mounting brackets are probably different. I doubt the rotor offset from the hub (i.e., design of mounting hat) and the location of the rotor pins/retaining screw are the same between the e9x M3 and e60 M5 BBKs. Also, if this BBK includes a rear caliper and rotor I doubt the design of the parking brake drum/shoe is identical to the e9x M3 parking brake design. Basically, be prepared to spend a lot of money and time fabricating custom parts to make an e60 M5 BBK fit on an e9x M3...