My car turn on the check engine light when I check the scan tell me that have problem with the catalytic but is so expensive so they tell me the better option is to remove the 3 catalytic is a good idea? please tell me the pro and con... thanks

 

What is the code(s).

The converter condition is monitored 02 or A/F sensors installed into the exhaust pipe. One is installed before the converter and one after converter. The sensors compare readings and based on the results determine the condition of the converter.

Removing the converter without doing something about the sensors will not help.