someone that I used to know on this site made their ow, he used a pc. of metal cut out to sit on top of the TB and used a few of the existing screws to anchor the metal plate down to the TB, than he picked up a cheap intake tube for a honda I think from e-bay, he had the intake pipe cut on an angle and welded to the plate, than he used a coupling another section of pipe and a cone filter. I bought a K&N Apollo enclosed cone filter to use on my car, link below,
K&N Apollo Universal Cold Air Intake Systems
I plan on making the same style adapter as I described above and mounting the Apollo filter where the stock battery is, than I'm going to relocate the battery to the trunk.