I bought these from another forum member, MB328. See original thread:
I never used them. When my mechanic checked the brakes, the rears were still good. I'm selling these because I no longer have my car so I don't need them. $40
shipped or best offer. These will fit a 325xi or a 328xi but will not fit a 330.
The part # is 34216774692. If you check this part # at RealOEM.com you can see an enlarged pic that what I am selling is the same OEM part as shown in this picture: