As long as you get a good set of hids (ddm tuning, the retro shop, the retrofit source) that have the reflector shield around the bulbs, stick with 35 watts, under 6000k, and re aim them after the install, you will be ok with them in factory housings. Is it ideal, no, but you will be fine. Most of the glare that people talk about with hids comes from dumb kids running around in civics with 55 watt 12000k hids in junk ebay housings. I had a set of ddm tuning hids in my 07 tacoma, 35 watts, 5000k, re aimed them after the install, and in 3 and a half years, never got flashed once. And I could see so much better. I can put up a pic on here of the beam pattern of them if I can find it. Modern headlights do a pretty good job at controlling light output. Now if you go and do a sealed beam conversion on an old cherokee or slap them into an old civic, yes you will **** off everyone on the road around you. I just could never justify it to myself to spend 1k+ on a set of headlights.
Also, don't forget, you HAVE to get the chrysler can bus his harness from the retrofit source or the retro shop. This is not optional if you are installing hids. It is required.