Originally Posted by Emil
According to my dealership they are tecnically identical to the oem rotors.
BMW want to sell some new rotors everytime one changes to the sport pads
My dealership installed the sport pads without changing the rotors, so there should not be any problems in terms of warranty as well.
The combination of new sport pads on used oem rotors works perfectly in my case, I could not be happier.
Am getting the Performance pads and rotors (specified to be used in conjunction with the Performance pads) installed next week so should be interesting to see what they are like. Also asked what the difference in the rotors given they have different part numbers but parts area didn't have a clear idea.