I am curious about headlights for the sedan i have an 04 g35 sedan and i am wanting to get rid of my nasty oem headlights. my question is are 2 door headlights the same mount as 4 door.

 

Nope, you can only fit 03-04 sedan headlights, none of the coupe headlights from any year will fit, nor will the 05-06 sedan headlights.

I got pretty decent results using 2000 grit sandpaper + soapy water and plenty of elbow grease, then rinse and dry the lenses and apply 'wipe-new' brand plastic restoration product. The stuff has to cure for 24hrs which is kind of annoying if it's on your daily, but i've been rid of any yellowing of the lenses for ~ 3months now, which is longer than any other treatment I've used in the past.

 

As above, but you must clearcoat afterwords.