I'm still mainly trying to confirm the correct part numbers...
These Zimmerman Formula F rotors show to be Z Coated 2 piece Aluminum Hub to match OE. Which sounds like a good option. Still just not positive these are the correct PN.
I guess most people just get this done at the dealer or Indy but both quoted me $3,500 which seems steeeeep.
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2009 E90 335i MSport BSM over Oyster
JB4, VRSF CP, VRSP 5" FMIC, DPs, DCI
2020 X5 M50i Mineral White / Full Coffee Merino
DHP, DAP, Executive, B&W, Night Vision