I know our cars take D2R HID bulbs, but what would happen if you use a D2S bulbs? I know the bulb will fit.

 

Light pattern will be different. The2003-1005 OEM HID housing is meant to use D2R bulbs, that's how they designed it, so stick to D2R if you don't want light scattered because it's a reflector/projector housing.
The 2006 uses D2S bulbs though, since they are true projectors.

 

i'm just curiuos to see what it would look like with 4300k D2S in the 2003-2005 housing. u think the cut off line will go away

 

sorry for the non-topic question. but are our hids reflectors or projectors + reflectors?