[HP Autosport]

Originally Posted by Mrbig

What can we use that's better than stock with stock caliper ?

Our vote goes to the Performance Friction Direct Drive Rotors!

PFC DD rotor discussion:

http://www.m3post.com/forums/showthr...mance+friction

Originally Posted by tdott

I found these prices to be pretty good for OEM rotors.

http://www.rmeuropean.com/Part-Numbe..._6BB4EABD.aspx

As OEM(likely German made), those are good prices, but keep in mind that OEM isn't genuine BMW.