I just got back from visiting my motorhome at the RV storage yard and my passenger side converter is gone (they did a nice neat job, square cuts, etc.) I don't know when they did it since I haven't been to the motorhome that much and wouldn't have noticed it today had I not started the engine.
Thieves hit the yard in April but they didn't take mine then. The RV stored on my driver's side is gone for a while so I'm wondering if that side was too exposed for them but both converters are pretty accessible. Maybe they just got scared off. I kind of wish they'd taken both so I'd have two new ones. With my luck, I'll fail my next smog test and have to replace the driver's side converter.
I've called Progressive and the Police but haven't yet talked to a police officer.
My converters are so exposed with plenty of crawl space, I doubt that any preventive measure would work. Each has four or five feet of fully accessible exhaust pipe in the front and back of them. I'll paint and engrave them for the future but I don't think it will be much of a deterrent.
I did run across this, which is encouraging, especially in a situation like mine where there are 50 or more other vehicles to attack:
There's some risk but it would seem to be minimal as its fairly common still. 
Linear Mode
