I'm running the 55 Watt DDM HID's in 5000k flavor in my motorcycle. I have retrofitted HID projectors from an Infiniti though so I wouldn't be blinding anyone. They have been flawless. Only about a handfull of times did they not fire. With this said, I would not put them behind a projector designed for halogen light nor would I ever put them in a reflective housing that was also designed for halogen light.
MINE > '14 JKUR Anvil
HERS > '13 WK2 Overland Summit V8 Mineral Grey