[Luky]

I was looking at the bigger rotor upgrade for my 550i. Using 2015 alpina b7 disk and pads (and caliper carrier). I was going to get Zimmerman rotors from eEuropart for $116 ea but they show one piece rotor in pic. Ebay seller shows same Zimmermann part number (2 for $197 shipped) but pic is 2 piece rotors. I communicated with both sellers and eEuroparts said Zimmermann sold both 1 and 2 piece rotors in this application. The one piece rotor part number ended in -20 and the 2 piece ended in -32 (different left and right side rotors). So you can get Zimmermann 2 piece if you have the right part number (just hard to find in US.) I found 2 piece ATE (OES) rotors in this application for $177ea which is about $50 less each than oem.

I have used low cost meyle rotors on my e46 330 and e90 335 with good success. I like the akebono ceramic pads for those cars too. Lower dust that was tan vs. black. Never worried about initial bite. Just heat them up. Just takes two or three stops leaving my subdivision...