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Hi guys, I have the 370/380 callipers and wanted to order 380mm rotors. However, somebody told me that 380mm are designed for M4 and will not fit the e89/e92 because of measure of the hole in the middle. e89/e92 allegedly fits only the 370mm M Perf rotors.
Has anybody researched / measured this? The local dealer doesn't know..
Thank you!
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