Exhaust System: Description and Operation

Exhaust System Construction
The exhaust system of the vehicle consists of the exhaust manifold (with Warm Up Three-Way Catalytic Convertor, WU-TWC), exhaust No.1 pipe, exhaust No.2 pipe (with Three-Way Catalytic Converter, TWC), muffler, seals, gasket, etc.
The three way catalytic converter is an emission control device added to the exhaust system to lower the level of Hydrocarbon (HC), Carbon Monoxide (CO) and Oxides of Nitrogen (NOx) pollutants in the exhaust gas.