I have them on my car. The quality is not the greatest. I had to trim the sides a bit with a dremel tool to make them fit. also, one of the "projector lenses" was glued in crooked and I had to take it apart and re-do it. Everything looks fine now and it's definatly possible to do an HID conversion. You just need to use a quarter of the middle circular part of a pop can on the bottom inside part to keep the light from the HID from blinding people on the road... a little hard to explain... I havn't done it myself but one of the guys at work did it to his truck. You will have to do some wiring work also.
Oh, and you wont have high beams anymore either... unless you find a way to put the stock bulb in there too.
-David