Hey.. i was wondering.. if i could replace the bulbs in the head lights.. i know because they rotate up and down... the casing is different than regular rectangular bases on hondas for example.. so would it be possible.. to take out the bulbs in my headlamps and put like.. xenon lights in there?.. someone help me out!! =) thanks~

No you should not change those bulbs. They are not meant to have that high of powered bulbs in them. However Hella does make bolt-on lights that are H4 sealed beam headlights--they are considered "off road use only" but don't know if you would get caught. Here is the link to one place to get themhttp://www.nismoparts.com/catalog/?section=263

or just look at http://www.nismoparts.com they have a lot of nismo performance parts--go to the accessories link on the home page.

P.S. if you get these you will also need to put in relays so that you won't fry your wires--any nissan service center should have them.