I recently picked these up from RG Sport. Ben screen name R33 hooked me up with a great price and you can see the OG thread here
http://f80.bimmerpost.com/forums/sho....php?t=1026926
These are an after market part and they are bare matte black plastic construction. I was going to use the stock M4 grills but did not want the work of removing the M4 logo and mount...wound not have ended up so clean. I decided to reuse my stock chrome trim which worked just fine with these replacement grills. I am thinking about doing something custom with the left over matte black trim...have to see if i get bored!
Check pics below for comparison and final product.
Let me know what you think guys but i love it!