[NotchJohnson]

First of all, of course you dont want vacuum leaking, and if it seemed as though I said that, sorry, thats not what I meant. The bap sensor is on the firewall, behind the intake. It has an opening on the bottom of it, and on a mass-air car, it needs to be open. The sensor measures barometric pressure so your car will compensate for high/low altitudes. Yes that box on the pass-front side is your charcoal canister. On my cobra intake, the vacumm line from that is hooked up to the front of the intake, there is a small fitting on it.