Thanks! I used the Spectre mass air flow adapter tube and medium size air filter from the parts store. I was dubious about the plastic part, but the thing is way more tough than I would have guessed. It comes with three different sensor adapter plates for different makes. I think it was the mazda plate i used, the big square one to have room for the big wide sensor on this car and so the sensor screw holes lined up with the holes on the plate. Lined the sensor up in the center of the plate and cut out a hole to insert the sensor through. Then my friend got bored and took over. He scribed the square base of the sensor onto the plate so that it would go down into the plate up to the green o-ring. He realized that the screw holes on the sensor wouldn't line up with the adapter plate holes, so he got two longer screws and made small pilot holes through the plate and tube. Then we used a bench grinder to flatten out the lip around the hole in the sensor tube on two sides so the gasket would seal tight between them. Cut out a little plastic on the tube so the sensor would go in, and after a few more adjustments with the Dremel, had a tight seal all around the sensor. I decided to leave the bottom half of the air box in to support the air filter, to prevent water water from splashing up from around the engine, and to catch some of the cooler air blowing in the grill. Clamped it on and took off! An hour and a half and forty bucks, and now my car accelerates much better and sounds totally awesome