So we all know there is a lot of glare when you use HID kits on a halogen headlight. I've read people saying the HID headlights on the LS have a difference in the reflector. I just changed my HID bulbs yesterday and noticed the shield on the bulb. Well if the reflector is different in the HID headlights, you would think it was the one in charge of the cut off, so why does the D2R bulb have a shield on it. I was thinking that maybe the difference between the HID and halogen headlights is the bulbs they use since for the HID you need that wierd/special D2R holder for it,the D2R holder and D2R harness. So if the bulb has the shield and that shield is the one with the cut off and eliminates glare, all you need is a D2R bulb holder, dont know the name for it, and a D2R harness, not an actual factory hid headlight. I would try it out myself but I no longer have a set of halogen headlights.