Upgrade kit needed for catalytic converter cover? Also, alarm?

Can't see the image or link for the alarm, try to copy-and-paste the image or link, or just enter the make/model.

Depends, can you afford the 3k+ for a replacement cat, and supply chain issues that may be many months long for the replacement part.

 

Racewill Catalytic Converter Anti-theft Device, Catalytic Convertor Anti Theft Alarm Car Motion Sensor

Not sure how useful this will be. Only a couple of reviews 3 out of 5. Better to have it with a PIR motion detector rather than the device itself triggering alarm when it is moved.

 

How about something that totally prevents them for cutting where they're gonna cut Seems to me Rolls Royce would be welded-on steel bars arrayed around the cut zone, would thwart them. Maybe slip steel tubes over the bars before welding on too, to slow them down if they try to cut through all the bars.



Since I've zero welding skills, I've tried wrapping the cut-zone with chain, secured with every wrap or two with nut/bolt, the outer most ones with permanent thread-lock.

Maybe high-temp JB weld could sub, with the steel bar method? The bars could be something like 1/8" or 3/16" diameter, quite close together?

Or a similar welded wrap with expanded metal mesh?

 

More on an expanded metal mesh option, at the cut zone. Make it long enough that it couldn’t be slid forward or aft, would bump into a bracket. If it even could be slid. Fasteners with oversized fender washers, and either bolts (with perm thread lock) or strong pop rivets. The outstanding flanges preferably small enough that the top half could fit round top of muffler without need to drop it.



I’ll take break, appreciate I’m drifting lol.

 

Whatever you put on there, secure it well. It's going to want to rattle.

 

Meh, business smarts, gumption, nerve, are not my strong suites, lol. But I do like spinning ideas; I try some of them.