Last time I posted up about this I got major flamage because other people's OPINIONS did not coincide with mine (typical Zylvia) which is what is already beginning here of course... Anyhow, check out this link for probably the best write up / DIY on the front end install:
http://www.ultimatecarforum.com/s14-r32-headlights.html
Or, if you want check out my first post about the wiring. (which by the way, the set I bought off ebay for less than $110 shipped from Japan in GREAT condition was already wired perfectly to just plug and play - my post about the wiring was total NOOB and I didn't realize a plug had been left on prior to shipping it to me):
http://www.ultimatecarforum.com/s14-r32-headlights.html
Have fun man, I think it looks freakin awesome but that gap does need to be taken care of for it to look good up close. GL
** Nevermind - realize now you gotta s13... my reply was based on s14. sorry.