Shameless self-promotion post here.
My X5 had titanium grills painted black by the PO. I ordered standard ones to replace them, but then ended up ordering and installing titanium ones instead. The standard grills were never installed and are for sale here:
http://www.ebay.com/itm/181742720828...84.m1558.l2649
It is a set. Part numbers 51137157687 and 51137157688. If someone from the forum buys them on ebay, let me know here and I’ll throw in the old titanium grills that the PO painted black (if you want them).