need some help identifying what this box is in my engine bay. The sr20 has an aftermarket pod filter on it. Between the air sensor and the actual pod itself, there is a tube connected to a black box thats mounted to the arch around the strut. This leands back down to the downpipe where i'l assuming air re-uses air. Is that what this box and tube are for? Is it necessary? I would like to disconnect this tubing and box because i need the room. Will this cause the engine to run less than adequately? Thanks ppl for your help.