I see your question and I raise you one:
What happened to San Mateo? As far as I know it's still on the map.
I still have both my Fiero's but don't go on the forum as much these days.
Regarding Calif. cats, you bet your sweet bippy they check cat numbers!
Oh yes, they have mirrors at the smog shops to check them. I have been told by several smog guys to make it easier for them by keeping my cat purchase receipt in the glovebox so they don't have to check under the car.

By the way, you do realize we're talking about California here?

Forget everything you know about fair and logical smog tests and you will begin to understand Grasshopper. By the way, did you know that a muffler shop cannot by law install your aftermarket cat until he has verified the number on it and that it fits your car? You cannot buy a non carb compliant cat in Calif. period!
I am convinced CARB's motto is the same as in this cartoon I saw in the paper years ago: "This ain't Burger King. You don't get it your way. You get it our way or you don't get the damn thing!"
[This message has been edited by Kitskaboodle (edited 07-14-2018).]