I bought a set of Bi-xeon HIDs off ebay years ago for 2 of the B-bodies and my truck. They are ok, but the high lo is mostly useless. All it does is move the lamp in and out a bit which works for signaling other drivers on the road, but nothing for actual visibility. At under $70 I'm still happy with them.
As with all HIDs in stock lenses, the light is scattered, but it's better than the stock headlights on these cars.
This is similar to the one I have.