I have. put it in last week.
I changed 2 Subaru SVX'x and a PT Cruiser as well.
I got a slim ballast 4300K BI-XENON kit for motorcycles off Ebay :
http://cgi.ebay.com/ebaymotors/HID-...62QQcategoryZ36476QQihZ002QQitemZ120284310960
the good: HID (depending on Color Temp. 4000 to 4300 k being brightest) is at least 4x the lumen's of any 55/60 bulb and only draws 35 watts. the light is a hell of allot brighter. this kit fits with minimal work. I routed the wires around the right side through the scoop/cover. power I got from the starter solenoid +.
the bad: routing is interesting. without the slim ballast it won't fit without allot of work. maybe you could work it between the air box and tree, but the slim ballast was hard enough getting in there. The Bi part of Bi-/xenon is a bit of a joke. There is a pattern change, but not like the H4. I like the "high" beam pattern better than the "low" beam pattern. the main/focused light pattern does not shift up like the H4, just more side and light directly in front of the bike.
the ugly: on my bike at least I need to cut some of the back of the housing. the HID bulb and servo setup is a bit longer than stock bulb & connector. I can only get the bulb to focus down so far before it hits the back of the housing.
I can try and take some pictures, but it is a bit difficult to capture headlights.
would I do it again? ohhh yahhh. on all 4 vehicles.