[steve86]

Yeah, sounds about right though many of them can be bolted on as an assembly.

[null and void]

Here they tend to steal them from the car in the driveway, by the time the owner is awake and dressed enough to confront the miscreant, they and the converter are gone.

Protip:

If your car has a remote start, keep in on your nightstand and use it immediately!

Quite the nasty and VERY loud surprise for the poor sap with his ears inches away from the exhaust pipe he just cut!

Enough neighbors should be awakened by the 'sound of automatic weapons fire' to insure a prompt response from even the slowest, most negligent local PD...