I highly recommend the Twister cone. It worked great with the stock vacuum setup, but with my new CAI, it would not fit. I had to take the heat shield off. That thing is quite large. My plans are to mod the CAI routing to get not only the heat shield to fit, but to vent more flowing air to that front corner of the engine bay. I was in the garage last night toying around with a vent kit I have, but sadly, finding a good route to run the 3" vacuum line from the front cladding into the airbox/filter location is not easy to do. Cutting a hole in the radiator support would do the trick, but I will give up before I have to do that.
Still working on it.
And alas, batteries were dead in the camera last night, Charging now, so pics are coming.