This is an unfortunate event. If in fact the air intake unit is an
aftermarket part, it must have an EO number either affixed to it, or in some
sort of documentation. Our first suggestion would be to return to the Ford dealership where your purchased your Miata and explain the situation. If
they value their customers they should rectify the problem, by (1) finding
the ARB number which belongs to the air intake and (2) smog checking your
Mazda at there facility. Finding the EO (executive order) number for your
Miata's air intake will require contacting the components manufacture. You may be able to find the EO number online (if you can verify the component
visually) or have it mailed to you (if only one type of air intake unit
exists for your specific make and model of vehicle). You will need to
present the EO paperwork to the smog technicians during smog checks in the future.
posted by SmogTips Support