alien drifter

Can someone please tell me what this is. Can i remove it and make a block off plate for it? Is it for emissions? Sorry the engine is 13b-rew, that is on the back of the engine on the passenger side. I took the air pump off and am making block off plates for the holes that are left after removal and want to know should i do the same for this? Or hook it back up, what does it go to? and im talking about the metal tube. Thanks for all the help in advance.

KompressorLOgic

iTrader: (6)

yeah thats the air control valve ( might have diff name on fd), controls air from air pump to cat and what not. you can block that off.