your going to have to go through a nissan dealer now to get it....
its called a camshaft assy , part # 13020-88A00
if you cant get it through the dealer then call 411 and get the number to :
Nissan Motorsports/ Parts Division
745 West Artesia Blvd.
Compton, California 90220-5594
the cam is rated to give you an extra 20hp i beleive
the cam cost around 150$
