as breaker said, you are going to hate them with halogen bulbs. they suck the light out of HID kits, they are going to suck out the little bit of light from halogens. the "projectors" in those lights are actually fog projectors, hence why they are so cheap, they just gobble up the light. If you really want an increase in light output, buy a set of OEM projectors (the actual projectors from inside the headlight units) like RL or TSX or S2K, then do a retrofit, and finally buy a OEM ballast/bulb set or get a decent HID kit (4300k is best).

http://www.hidplanet.com/forums/ go to the school section and read up.