Ok so with my MAC h-pipe in place the air return line is crimped off on the pipe..so i removed the tube from a 3 way valve that goes from the engine to the smog pump to the exhaust.My question is can I just leave the remaining hose from the 3way valve towards my air pump hanging there disconected? It just points straight down towards the ground in my engine bay. I assume it's a fresh air line to the exhaust or it would be better secured, but will it make excessive air flow noise or affect performance.??The remaining 2 lines are still connected to the engine and smog pump.