I popped my ambers out and sprayed them with a light coat/dusting of silver spray paint. Easy mod. Cost: less than a penny. Why pay Bimmian or any other place for the exact same thing? It is recommended to use high heat paint but I used regular Krylon and it's been fine for over two years.

Edit: I only did this for my side markers. For the rears I bought Philips Silvervisions and the fronts have OEM clear bulbs. The look sort of amber because of the amber reflectors and in comparison to the white of the xenons.

__________________