you can remove the chrome and have it refinished. i think it is actually polished aluminum, not chrome. speedway in santa ana would be a good group to send the metal to. they polish and ceramic coat. i do have a passenger side, but i think you can still buy that part new. not sure that BMW has made the drivers side available yet - m5bb (Gary) has been trying to get a new one for quite a while ... not sure that he has yet.
Gary - i thought you needed a drivers side. i have a spare passenger side - very good shape, just needs the metal polished. call meI have a new drivers side grill that I purchased new from BMW 4 years ago. It was about $225 then. I have been told at least twice every year for the last 4 years by BMW Classic that more will be made.
Was supposed to have a new passenger side this last month. Now they say the 2nd quarter of 2017.
I'll believe it when I see it.
If anyone wants to buy these new I suggest you call your dealer and place an order for them. I have had a standing order for the last 4 years. It never gets cancelled and never listed as NLA.