These were made using sample parts from our old project car, now our #79 car, which PFC held through the prototyping stage. We bought the entire first production run of these. We more recently measured cars and measured our stock - all is correct. There is a step on the hub which could cause an error in measurement, but the fit is correct. There has been no change in spec from PFC and there has been no obvious change in hub or hub PN from BMW. We have never had reported issues from our customers on this part and I would expect that to remain the same.
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