There are three screws holding it in place. One towards the front of the resonator, and two inside the fender well. Good luck manuvering it around the little metal bracket.

And I would leave the upper half of the tube in place. It simply loops around inside the resonator, so cut it in half with a hacksaw or something. When you pull the whole thing out, look at the airbox in relationship to the fenderwell. Mine had about a 0.5" gap, which in my opinion is not what the original makers had in mind. You will still suck a little hot engine air with the whole thing removed.