The HID replacement is for the low beam only (9005 lamp). The high beam (9011 lamp) remains stock(for my 97,not sure about the others). 4100K and 6000K is just the color tempurature. 4100K is as close to white as you can get(slight blue tint) and the highest light output. 6000K gives you a bluer tint but at a loss of light output. This chart should help.Sorry for my ignorance but what the deferent in numbers and meaning like high beam low beam ? 4100K and 600K etc ?
I know FinalGTS from this board was working on kit.
and there was a recent thread.