Yep, they are behind the glove box ( remove the white panel to get to them )
1 screw is a little tricky, but the rest is easy as.
BUT
When you call up Mr. NISSAN and get a price on the replacement paper elements, you get a response that goes a little like this......
Each filter element is $130.00 and has to come from Japan. WTF ?!?!
Me: You're kidding right ? Him: No, that's the price per filter. It seems insane considering it's just a paper filter element. Me: I agree. I think I'll give it a miss, thanks.
So, off the supercheap I go to find a substitute. Best I've come up with for the short term is the following:
I grabbed one $20 Ryco air filter element and a very sharp knife and 15 mins later I wound up with this
Will investigate a better options as time allows but for now, this works fine.