How can I protect my new exhaust/catalytic converter from being stolen again??

[rita]

If they want it they will take it, they might even leave the cat and take the van. Probably the best solution would be to camouflage the cat to make it look like a resonator..

[g8dhe]

You could consider strapping one of these in a very obvious clearly seen position on the Cat itself, it might act as a deterrent!!
https://www.amazon.co.uk/WoSporT-Tactic ... ef=sr_1_11