I use Subimods HID kits. 4300k for low beams and 3000k for the fogs. I did have 6000k lows, but they suck on wet roads. Also if you listen to the radio often, especially to channels in the 9X.X frequency range, you may want a different brand of balasts than the ones Subimods sells. They don't appear to comply with part 15 of the FCC rules and regulations. Specifically the part that says that a given device "MAY NOT CAUSE HARMFUL INTERFERANCE". I have not yet checked the packaging, but I can tell you, I can listen to anything in the 9X.X range until I turn on the headlights, at which point no car within about 75ft will get those channels. I can still get almost anything in the 10X.X range, including WTOS.