i did it without removing the breather. a throwaway wrench with a cut off handle works the best. either way, youre looking at 2+ hours, THEN, you still have to reinstall the hose... pain in the ass job.
I did it. Took me and a former nissan mech almost an hour just to find the damn thing. The haynes manual isn't much help. Took me a total of 6 hours to find, remove, and install the piece of @##$. I didn't remove the breather (mistake), and had to cut a little of the hose off. Do yourself a favor and take it to nissan and have them put it on (buy the part yourself).