"I can wire for whatever o2 you want, but my default o2 is one from a 96 chevy camaro. It's 4wire, and it's cheap." - Doug
IAT is the sensor I circled in Red in this picture. Where you put it doesn't matter as long as its somewhat near the throttle bodies.
A "Pod Filter" is a filter they use on motorcycles for ITBs or Carbs.