Clio pre-catalytic Catalytic converter. It is coated with the latest technology made of stainless steel. In the middle part, the metal case holding the ceramic filter prevents the ceramic layer from vibrating and making noise when the converter heats up. The metal case is welded onto the inlet and outlet pipes, allowing the air inside to flow easily. It has an oxygen sensor. Mono honeycomb ceramic helps release gas in accordance with emission values. All products are additionally washed against oil and crumbs during the production process. It is a product that can be detected with a fault light in accordance with ISO 9002 and OBDA 2 emission standards. Double-Shielded