What is this part? I can't figure this out? It is on the left side of a 2001(I think) Kazuma Falcon 90. It is pulling air from the air filter. I'm sure this is something dumb and easy, but I just can't figure it out.

I will get another better picture tonight if needed. This is just one that I found on this site from a different thread.

 

Anyone?

 

If this spot don't work, try the chinese section.

 

It's a vacuum valve that allows air to be sucked into the exhaust. Won't hurt performance but it's no big deal to remove.