The catalytic converter is an invaluable part of the vehicle’s exhaust system that alters some properties of the harmful exhaust gases and makes the gases less damaging. The failure of a catalytic converter is not uncommon at all. Any kind of unusual external impact can damage the converter. You will experience engine misfiring, reduced engine performance, noisy ride, low fuel efficiency, and increased emission level- with a bad catalytic converter. Getting your vehicle a new catalytic converter is what you should do when the converter fails.