I have done the conversion. I have a generic H4 hi/low kit that I got on eBay. High BTW is unnecessary with HID unless you need to show hi/low to pass inspection.

You may have to play with the shade that goes around the capsule to get the pattern right. the HID capsule makes light front to back, and a H4 bulb makes light left to right if you look at the filiment VS the path of the arc.

What this does is throw a fair amount of light above the low beam cutoff line, some of it as yellow. I had to enlarge the mask some, and play with shims betweel the HID insert and the reflector housing.

It is a really worthwhile upgrade, but I think in hindsight that the HID auxillary lights I added to the lightbar were a better investment of time and money.

If you can't throw a clean low beam pattern you will have to aim the lights very low or constantly get flashed by other drivers, and risk getting a ticket for failure to dim lights. HID conversions are already somewhat of a gray area as far as legality, you don't want to attract unwanted attention.

John C.