exhoust vave
No, that will not work. A restricted catalytic converter will need replaced.
No, the catalytic converter has nothing whatsoever to do with your defrost system.
There can be a few reasons for a catalytic converter to go bad. One of the causes could be clogs. Other reasons include plugs not working right, and bad exhaust valves.
catalytic converter
It's not up to you, when to "make the catalytic converter to work"!... The catalytic converter will provide the chemical reaction alone only @ 400 > degree, no options! See/Google "how it works" and that will help you understand how and why!
Legally you can only replace a catalytic converter with another catalytic converter.
Yes, it has a catalytic converter.
Yes
what is the surface area of a catalytic converter
There is not an antitheft cover for the catalytic converter. The catalytic converter gets extremely hot and cannot be covered.
I would not touch it except to install a converter.
There isn't gold in a catalytic converter.There isn't gold in a catalytic converter.