Here I go again....Chiltons manual will give you a diagram of all of your hoses and lines. You should have NOTHING lose or just laying around. Everything should be either connected or capped off. S4GUNN make a good point....sometimes adding something can cause poor performance if not done properly. I have an AEM cold air intake and everything is accounted for. OK, I cheated and had a certified trained Honda Factory Mechanic do it. Not everybody can have it done by a pro...but having the Chilton book for a reference helps (when time permits I do other things myself).