Any idea of what this is and if it suppose to have a cap. I was checking my oil and noticed it I dont remeber seeing it when i put on the pop and z .

Thanks

 

It is a resonator of some sorts that sticks into the bottom of the stock airbox. It is uncapped. If you look at your stock airbox you will see the hole for it on the bottom side.

Since you aren't using the stock airbox anymore you can remove it but I believe you have to get to the bolts from the fender well.

EDIT: Is the stuff in your engine bay really that brown or is it your camera? Everything is black on mine.

 

You're right. He does have to go under the car. It's a couple of 12mm bolts. As for the brown stuff can't help you there..lol

 

You gotta remove the wheel well cover to remove that bottle, its held by 1 10mm screw.

 

Im pretty sure its my camera i think i had the red eye remover on because there was a red light that came on during the pics. Thanks for the responces guys just wanted to make sure something wasnt missing a cap.