I know a lot of owners changed their OEM chrome grill to the black one and the old OEM one just sitting around collecting dust (mine was before I sold my M3). If anyone who has the passenger side chrome grill and is willing to part with please email (repeatedictoal at yahoo dot com) or PM me.
I know that I can get a new one from the dealer or online site like pelican, but $80 per side is a little steep.