Catalytic Converter Gasket

The BMW catalytic converter gasket is a Genuine BMW component, manufactured in Germany to meet stringent OEM standards. This critical gasket is situated between the turbocharger and the downpipe/catalytic converter, creating a tight seal to prevent exhaust gas leaks. Proper sealing of the exhaust system is essential for emissions control. A failed gasket can lead to exhaust leaks, characterized by hissing or popping sounds, and may allow unprocessed pollutants to escape, resulting in an unpleasant exhaust odor. This gasket is specifically designed for various BMW 335i, 335xi, and 135i models, including those with N54B30A and N55B30A engines, across numerous model years. It also fits select X5, X6, and M models, though specific engine and transmission configurations apply.