CBS619, it is plastic. Its only drain pipe from Home Depot and even still its held up. After I had done this we still had a few 100F+ here is Sacramento and still just fine.
Jdirks, That is what I did at first but the filter I have was hitting the hood and having the filter right on top of the TB sucks in all the hot air coming in from the radiator and the exhaust manifold. Where the filter is located in this picture, it gets colder air but if you look closely its right next to the radiators overflow canister. If you overhead its going right into your intake. If you were going to do something like this for a CIA, move the battery back a little, cut a hole in the body to route the tube just behind the bumper cover. Not too low or it can suck up water when it rains.
