is it not possible to just order them from Honda Japan? Or have someone in Japan get them and send them over?
No, because they use a different beam pattern in Japan. In North America, we have left-hand-drive cars, and our headlights are designed to throw light ahead and slightly to the right, so as not to blind oncoming drivers. Japan has right-hand-drive cars and their headlights project light in a different pattern.
[EDITED to add the quote from the previous post to my response, because johndoh beat me to it and otherwise it sounded like the "No" was in response to his post. BTW I think it's true that some JDM NSX's come with HID headlights from the factory.]
[This message has been edited by nsxtasy (edited 17 July 2001).]