Genuine OEM Volkswagen Exhaust Manifold With Catalytic Converter, part number 03E253020R. This part connects the engine's exhaust ports to the exhaust system, facilitating the removal of combustion gases. It integrates a catalytic converter to reduce harmful emissions before they enter the atmosphere. Weighing 3.831 kg, this assembly is crucial for both engine performance and environmental compliance. Genuine OEM ensures precise fitment to the engine and exhaust system, and correct catalytic converter efficiency for emissions standards.