I went under the car today to remove the lower radiator hose, and saw an empty (what looks like) reservoir basically located under the driver's side headlight. What is it for?

Off the top of my head, I would guess it has something to do with the stock air filter but I'm not sure. Can anyone chime in? Thanks

 

It is a baffler box type thingy for the air intake. It is supposed to be empty...be worried if it has something in it.

 

So I'm guessing it connects to the inlet on the bottom of the stock air intake? What purpose does it serve? I plan on keeping my WAI but it's good to know!

 

Not quite sure...I actually pulled mine out when I installed my after market intake.

 

It's for the blinker fluid.

Best top it off if it's empty.

Actually, I think foodmanry's right. I think it's just a baffle for the stock intake. Ditch it. I'm pretty sure mine came out with my intake when I put my aftermarket intake on.

 

I'll buy a Johnson Rod while I'm at it, thanks. (OT?)

 

Emergency toilet bowl

 

intake resonator...its a family sedan so nissan installed it to reduce intake noise