Ok! I really really want to install my HD intake so I purchased a 3' Mighty Flow hose, 3' K&N cone filter, and some 3' clamps to tighten the hose to the filter. Well I understand that part of the system, but now I have to drill some hole to fit the IAT sensor into the hose? OK I have no idea what an IAT sensor is or what it looks like! . Today I took out the stock airbox along with the scoop in my car but left the elbow that connected to the manifold. Well I have a 4 banger and there are two separated plugs that are connected to the stock air box. Is One of those plugs the IAT sensor? If so, then what is the other plug for and is it necessary to connect that plug also? PLEASE HELP!!!!!!!!!!!!!