The only cars to day that use Xenon lights for the high beams are ones that use a technology called "Bi-Xenon" which is a single bulb and reflector. The bulb actually has a shield that moves up and down the length of the bulb to change the reflector pattern from a "low" beam to a "high" beam. In a dual reflector system like on the HCHII HID light output would be so great that the focus pattern from the reflector would cause excessive glare.

There are 9005 type bulbs available in Xenon, and they give off plenty of light, but I would hate to be in front of someone with those high beams.

On as issue of the hig-beam DRLs, the other posts are correct in that the reduced voltage supply would not be enough to fire the Ignitor/ballasts, so it would not work even if you wanted ultra-high beams.

The outward quality of the kit that I installed appears to be as good as the Bosch system on my Audi. The unit comes with a lifetime warranty on the Ballast and a 3 year warranty on the bulb. I hope that I do not have to put it to the test.