{"product_id":"catalytic-converter-for-ford-focus-2000-2004-2-0l-front","title":"Catalytic Converter for Ford Focus (2000-2004) 2.0L Front","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Front Catalytic Converter for 2000-2004 Ford Focus (C170)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit front catalytic converter replaces the clogged or degraded factory converter on the 2000-2004 Focus to eliminate P0420 trouble codes and restore factory exhaust gas scavenging.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Focus Exhaust Flow Restriction\u003c\/h3\u003e\n\u003cp\u003eIn the first-generation \u003cstrong\u003eC170\u003c\/strong\u003e chassis, the close-coupled factory front converter is subjected to severe thermal cycling and engine vibration. Over time, the stock ceramic core experiences substrate breakdown, micro-fracturing, and washcoat sintering. This thermal degradation chokes exhaust throughput, increases manifold backpressure, reduces fuel economy, and triggers continuous catalyst efficiency DTCs (such as P0420) from altered post-cat oxygen sensor signals.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed from high-grade stainless steel, this direct-replacement assembly features an optimized ceramic honeycomb substrate washcoated with catalytic precious metals to promote rapid light-off and chemical reduction of HC, CO, and NOx. Designed specifically for the \u003cstrong\u003eZetec\u003c\/strong\u003e 2.0L platform, it incorporates heavy-duty, robotically welded flanges that mate to the factory exhaust manifold downpipe without cutting or custom fabrication. Factory-positioned oxygen sensor bungs ensure uninhibited exhaust monitoring and seamless closed-loop ECU fuel trimming.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2000-2004 Ford Focus\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2.0L Zetec DOHC \/ C170\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e130 hp \/ 135 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e30397, 25201, 4300\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2000-2004 Ford Focus SE (2.0L 4-Cylinder)\u003c\/li\u003e\n  \u003cli\u003e2000-2004 Ford Focus ZTS (2.0L 4-Cylinder)\u003c\/li\u003e\n  \u003cli\u003e2000-2004 Ford Focus ZX3 (2.0L 4-Cylinder)\u003c\/li\u003e\n  \u003cli\u003e2002-2004 Ford Focus ZX5 (2.0L 4-Cylinder)\u003c\/li\u003e\n  \u003cli\u003e2002-2004 Ford Focus ZTW (2.0L 4-Cylinder)\u003c\/li\u003e\n  \u003cli\u003eExcludes: Base, LX (SPI SOHC), and SVT models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the C170 Focus?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2000-2004 Ford Focus equipped with the 2.0L \u003cstrong\u003eZetec\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eWill this clear my P0420 check engine light?\u003c\/h4\u003e\n\u003cp\u003eYes, replacing a deteriorated factory unit with this catalytic assembly restores proper catalyst efficiency and allows the secondary O2 sensor to read within OE threshold limits.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Daily-Driven Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the demands of everyday commuting, this assembly delivers OE-grade fitment, structural heat resistance, and reliable emissions compliance without costly custom fabrication.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67537830478072,"sku":"DS-E2YUILF5R","price":185.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-ford-focus-2000-2004-2-0l-front-1.jpg?v=1790618083","url":"https:\/\/performancechiptuning.com\/products\/catalytic-converter-for-ford-focus-2000-2004-2-0l-front","provider":"Performance Chip Tuning","version":"1.0","type":"link"}