New Drop in AFE FILTER Question

[Repsol69]

Question.. I just installed new AFE dry filter but what is this in the bottom of the stock air box?? Should I remove it also ?? Looks like some kind of carbon filter or something??

 

[MSINAL]

Cool handle! Is yours california spec?
Carbon filter absorbs fuel fumes for emissions - when the engine turns off, which it does often. Not sure about removing it.