Genuine OEM Volkswagen Exhaust Pipe with Catalytic Converter, part number 3Q0254300BX. This component is essential for emissions control and reducing exhaust noise. It is located in the exhaust system, typically after the manifold and before the muffler. The catalytic converter uses precious metals to convert harmful exhaust gases into less harmful substances. Genuine OEM parts ensure the correct material composition and manufacturing tolerances for optimal performance and longevity.