What is the primary function of the catalytic converter in the exhaust system?

The primary function of the catalytic converter in the exhaust system is to purify exhaust gases. It achieves this by facilitating chemical reactions that convert harmful pollutants produced during combustion, such as carbon monoxide, hydrocarbons, and nitrogen oxides, into less harmful emissions before they exit the vehicle's exhaust system. This process is crucial for reducing the environmental impact of vehicle emissions and complying with regulatory standards for air quality.

The catalytic converter employs catalysts, typically made from precious metals like platinum, palladium, and rhodium, to facilitate these chemical reactions at high temperatures. By targeting and altering the composition of the exhaust gases, the catalytic converter plays a key role in making internal combustion engines more environmentally friendly.