Howdy; me again...

Just trying to get my Mi back to how I'd like it. It has a K&N pod filter attached to the air flow meter. I'd prefer the stock filter box. The steel base plate with the over centre clips and rubber grommets is still on the car, but nothing else.

Is the Mi box unique to the car? I've seen some others that look similar on other 405's but can't tell, and I need to know if I have to narrow my search down to Mi's. Or is only the top part of the box different?

Any help appreciated as always, cheers