Our cars do not have a Mass Air Pressure sensor in them. They have a Mass Air Flow sensor which is located on the air intake box before the tube that leads to the throttle body, our cars cousin the Mazda 6 uses a MAP sensor, this is the main reason you cannot use a CAI designed for a Mazda 6 for our cars.
here is the D23
and the D30
BTW a MAP and MAF sensor would always be located in the intake somewhere after the filter element but before the throttle body, its pretty obvious since its most likely the only electrical component plugged into our intakes. Hope this info helps you out!