Its for a silvertop on ae86 I remove it and they were
Exposed

And this other one were does it plug to

yoshimitsuspeed wrote:The big one on the airbox should be routed to the circled end of the ISC in the second pic. That filters the air going through the ISC. Otherwise you will suck crap through it straight to the engine.
I never used the stock airbox so I can't tell you what the smaller nipple is for.