FWIW, BMW does not turn rotors. They replace them if they're out of spec so I would replace them. Those eBay "Brembos" could be the real deal and then again, they could be knockoffs. I have read reports of fake Brembos. I wouldn't risk it with something like that and especially with drilled rotors I can only imagine the havoc they could wreak if they are knockoffs.

Go with Zeckhausen. He'll hook you up with the good stuff. He's a vendor here too. http://www.zeckhausen.com/

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