There are no set time or milage limits for a cat replacement
A cat is normally replaced only when it fails.
If the catalytic converter is defective more than likely the O2 sensor is defective.
it is illegal to remove a catalytic converter.
2 years
As long as the vehicle is kept in good running order the catalytic converter should last the life of the vehicle.
catalytic converter
A OEM converter should bolt in exactly like the original, an after market may have to be cut and welded in.
The catalytic converter should be bolted onto the exhaust pipes. The bolts will have to be soaked in penetrating oil to be able to break them free, then you can replace the converter.
Can? Yes. Should you? No. It is illegal to drive a car that came equipped with a catalytic converter without one. There is no benefit to removing a converter from a modern car.
A catalytic converter should NEVER go bad unless something causes it such as a RICH or a LEAN condition. What is a "RICH OR A LEAN CONDITION"?
Legally you can only replace a catalytic converter with another catalytic converter.
Yes, it has a catalytic converter.
Yes