{"product_id":"sport-catalytic-converter-downpipes","title":"Sport Catalytic Converter Downpipes","description":"By reducing exhaust back pressure, these stainless steel units enhance throttle response, increase initial turbo spooling, and provide a more aggressive exhaust sound output. They are constructed from high-strength T304 stainless steel and feature integrated 200-cell sport catalytic converters for an optimized balance of flow and filtration.\n\nCompatibility is specific to the 4.0L V8 BiTurbo M177 engine found in W205 C63 and C63 S sedan models, C205 C63 and C63 S coupe models, and X253 GLC63 and GLC63 S SUV\/coupe models.\n\nNote that these downpipes are intended strictly for motorsport applications on closed-circuit racetracks or for export purposes. They are not intended to be installed on vehicles for use on public roads in the United States.","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":52865956380984,"sku":"49.177.0373","price":4215.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687606414.webp?v=1787905805","url":"https:\/\/store.motormia.co\/products\/sport-catalytic-converter-downpipes","provider":"MOTORMIA","version":"1.0","type":"link"}