Need a quick answer theres even a picture

[crazybusa05]

on the front of the airbox ie between the ram air tube what plugs in here?

 

[GoldenChild]

a little water drain cap or leave open.

 

[CorrodedAlien]

...or is it the "Marble hose"

 

[ranman]

...or is it the "Marble hose"

nope marble hose is on the right side

 

[MN72Busa]

Don't block it off....if you do small airbox mod, seal off everything except the drain valve thingy