[MrPbody]

Something MADE the cat go bad. It sounds like an extreme rich condition. These cars are usually pretty good about it, but occasionally an injector goes haywire, loading the converter with fuel. THAT'S why it glows. That can and will "clog" it, as others have said. Be sure to have a complete diagnostic check done of the system. This will require a trip to a professional technician with the correct electronic "scanner" to read the computer codes and assure the integrity of the system.

Just don't replace the converter and believe everything will be fine. Check it out closely, so you KNOW there are no other problems. This is a major safety issue.

Jim