QUOTE(r3kahsttub @ Sep 28 2010, 12:06 AM)
i had initially considered aftermarket HID, but have read many, many bad reviews on the lifespan. my initial thoughts was to find a set of FD2 headlamps from a half-cut shop and retrofit them to my FD1.
just needed to know the costs involved, and wanted to be 100% on the legality issue

Well, if you want a totally stock-looking HID set you won't go wrong with an FD2 retrofit, cos that headlight is designed for HID, with proper cutoff lines to avoid blinding oncoming traffic. However, due to D2R being the defacto standard bulbs for reflector based housings, Honda too opted to go with D2R for the Civic and I believe the Accord as well. The reason that I feel like changing back to the FD1 lights is because I have a perfectly good working set of Philips HB4 bulbs and ballasts, with great color and brightness which I bought new for RM1500++ and used for only 2 months. If I sell them I'll lose a lot, so no point.
Although the cutoff line for the FD1's HB4 can never compare to the FD2's D2R (due to the inherent design of the FD1 housing being made for halogens), IMO my Philips HB4 set is brighter than the D2R set that I'm on currently. The HB4 that I have are also warmer in color tone, making for a much brighter driving experience. In terms of raw brightness, HB4 wins, but if you want an elegant solution, then you'll be better off with D2R. The FD1 lights on HID (even from Philips) tend to have quite a bit of light bleeding, but not that bad, just not so nice

This is due to the fact that in order to extract maximum brightness from halogens, the designers of such housings would try and reflect as much light as possible. Light bleeding is there, but not that noticeable on halogens, but once you switch over to HIDs, the bleeding is more obvious.
FD2 headlamp housings are costlier than FD1's. Not that FD2 headlamps are technologically very different, it's just because they're made for a more premium car lol. You can get a pair of used FD1 headlamps for around 500 or less, while a used set of FD2 headlamps may fetch between 600-800. If you decide to buy the original ballast and bulbs from Honda, prepare to pay at least 2k or more. Not to mention, the connectors for HB4 and D2R are different, so for me, I bought a pair of used OEM D2R ballasts (I think they're from Matsushita or Bosch, not sure) that come with the D2R/D2S bulb connectors. The wiring that goes into the OEM ballasts from the car's headlight wiring needed to be frankensteined, so I spliced a pair of HB4 connectors from an old set of ballasts rather than mess up my original connectors.
If you really want FD2 lights, I have a pair (using them now), and if you want the original Honda OEM ballasts and bulbs, I got jalan oso

The only good thing about the ori ballasts is that they fit nicely under the headlamp housing (there's a round, hollow indent under the headlamps where the ballasts are secured in place via screws).
If you're keen to experiment let me know, I'll work something out for you
This post has been edited by gregy: Sep 28 2010, 12:47 AM