The catalytic converter is an emission control device added to the exhaust system to reduce pollutants from the exhaust gas stream.
Periodic maintenance of the exhaust system is not required, however, if the car is raised for other service, it is advisable to check the general condition of the catalytic converter, pipes and mufflers.
Check the exhaust system hangers for damage and deterioration. Replace any hardware if necessary. System damage may occur if broken hangers exist.