Catalytic Converters have been the motivation for millions of car break ins and car vandalism. I have also experienced this theft. I will admit right now, that I don’t know much about cars, nor have I ever really cared that much about them, so long as my own car worked sufficiently.
So, my question is, are there feasible alternatives to having a catalytic converter? Other methods of getting the same function done, but with a device that does not have any precious metals contained within?
There are covers you can buy for your Cat. I used Dremel tool and engraved VIN on my cat. Also spray painted number with Heat Red Paint (Rustoleum). No self-respecting thief will risk stealing something he knows he can fence.
Drive an EV
If you live in a state without “smog checks” take it out. I drive old cars though. I doubt new car computers will let you drive without one or will void any warrantees.