Catalytic converters are important parts of car exhaust systems that significantly reduce harmful emissions by converting them into benign gases. They are required on all cars sold after 1975. The best catalytic converters should outlast the life of the car they are attached to. However, ill use or poor luck may cause the catalytic converter on your car to need replacing. What Is a Catalytic Converter and How Does It Work? Internal combustion engines produce exhaust gases. The majority of…