Legal Catalytic Converters

Legal Catalytic Converters FAQ

Which state requires catalytic converter?

Catalytic converters reduce toxic pollutants by chemically converting carbon monoxide, unburned hydrocarbons, and oxides of nitrogen into harmless compounds. In 2018, the Air Quality Control Commission adopted California's aftermarket catalytic converter requirements in Title 13, California Code of Regulations, Section 2222.

What cars must have a catalytic converter?

All kind of cars registered after 1st August 1992 must have a working catalytic converter. A car will fail the annual MoT if it is without a Cat or the Cat is not in good working condition. Cars running on leaded petrol and originally without a Cat, you don't have to fix one.

Is it legal to run without catalytic converters?

Yes, you can drive without a catalytic converter, but you need to approach everything with your head. If you do not want your car to be repaired, then first you need to make sure that removing the catalytic converter is the best way for you. It is normal also for a thief to pay special attention when selling a catalytic converter.

What is the bad catalytic converter symptoms?

Rattling noises from under the vehicle are another symptom of a bad or failing catalytic converter. If a catalytic converter becomes old or damaged internally from excessively rich fuel mixtures, the catalyst coated honeycomb meshes on the inside of the converter can collapse or break apart, causing a rattle.