No clue...but, as I was responding to Joe's wonderment over oem
cats vs. aftermkt, it was nagging me that it might be covered;
so, I ran down to my X and looked it up. It may be moot as I don't
know his mileage. But, it's ammo...I suspect there is a fairly easy
sniffer test to determine if the cat is shot or it's something else.

For fut ref, there is that seperate booklet that came with the Manual
and audio book; it's the "maintenance book" and in the back section
it details the stuff covered under Fed law, time and distance.
GL,mD