About 2 months ago I replaced my driver's side CV joint & starter at a local (cheap) mechanic. Today I just noticed that I have a part missing from my Stock Air Intake. It's the little black box looking thing that sits up front next to the crankcase ventilation tube. Anyway -- this explains why my car has been sorta weird all this time. Can someone tell me what this part is called so that I can order/buy another one?

Also, does anyone know if this could have caused any major damage (I've driven around approx. 3k miles since this part disappeared).