I have the black headlights on my 300S, but they are the bi-halogen since I did not get the safetytec option with xenon HID lights. I plan to buy a set of xenon HID lights and then crack them open and paint the insides in white to match my bright white 300S color. Then add Oracles colorshift halo kit and then reseal them up. But I will not do this project for a few months from now.
You can add an aftermarket HID kit to my bi-halogen headlights, if all you want is the black headlights like my S. I will sell you my set of stock 300S bi-halogen headlights if you want.
The Bi-halogen hedlights have the extended tube around the halogen bi-lens. The Halo ring will not fit properly on the end of that ring.
Using the HID headlight fits the halo ring around the HID lens much better.
It's not hard to do, crack open the headlights and paint the inside. I did the same thing on my SuperBee headlights and added the CCFL white halos. In the fall I plan to re-crack the bee headlights and add the colorshift halos as there is a yellow color that is perfect match to my bee with the colorshifts.