I might rag my car over some pot holes and see if they'll sell me a set of 313M's for dirt cheap.
Has anyone heard from BMW to see if these new alloys are made differently, otherwise it's useless if these are going to crack as well. You may as well buy a set of different alloys at a reduced price like LCSmith has.
My rear keeps going down a few psi every week so I wouldn't be surprised if mine is cracked or I have a faulty valve.
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