KGNickl wrote:Bought mine from
http://www.3Bspec.com. Found them on forums.maxima.org. Got 8000k for $130 shipped (overnight shipping included). They came with a relay and everything needed. I have a base 2.5 S coupe (no auto on headlights) so I just installed them w/ out the relay since its just one less failure point (plug and play). Have had no problems at all and they look great.
That's where I got mine too, I had been a member there for a few years. I actually dealt with them in person since they're based in Houston - awesome service and they back up their stuff 100%. If you already have factory HID's, then yes, you only need to change the bulbs to what ever color you want - no harness necessary. If you want to put HID's in your factory fogs, you can also use a harness, or you can go with the cheaper plug-and-play route, since there shouldn't be an "auto" problem with the fogs. Also the difference between single xenon and bi-xenon is simple - single has 1 filament, and bi has two You don't need need the bi-xenon bulbs as it's for headlights that incorporate the low and high beams into one bulb - the Altima has a separate bulb for each.