{"product_id":"catalytic-converter-for-lincoln-town-car-2003-2011-4-6l-left-right","title":"Catalytic Converter for Lincoln Town Car (2003-2011) 4.6L Left \u0026 Right","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Left \u0026amp; Right Catalytic Converter Set for 2003-2011 Lincoln Town Car (Panther Platform)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit catalytic converter assembly replaces degraded or restricted factory converters on the 2003-2011 Lincoln Town Car to restore exhaust scavenge velocity, eliminate catalyst efficiency trouble codes, and reinstate legal EPA emissions compliance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lincoln Town Car Catalyst Degradation\u003c\/h3\u003e\n\u003cp\u003eWith extended service life, the factory ceramic monoliths on the \u003cstrong\u003ePanther Platform\u003c\/strong\u003e deteriorate due to cumulative thermal cycling, oil wash from aging valve seals, and exhaust carbon accumulation. Over time, internal core fracture or washcoat sintering triggers recurring \u003cstrong\u003eP0420\u003c\/strong\u003e and \u003cstrong\u003eP0430\u003c\/strong\u003e diagnostic trouble codes. A collapsed or restricted converter creates severe exhaust backpressure against the \u003cstrong\u003eModular 4.6L 2V\u003c\/strong\u003e cylinder heads, choking volumetric efficiency, reducing highway passing power, and elevating exhaust gas temperatures (EGTs).\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a bolt-on replacement pair, this assembly utilizes heavy-gauge stainless steel tubing and robust converter shells for superior resistance against road brine and thermal corrosion. High-efficiency ceramic substrates featuring an optimized precious metal washcoat (platinum, palladium, rhodium) provide complete hydrocarbon (HC), carbon monoxide (CO), and nitrogen oxide (NOx) reduction without restricting mass exhaust flow. Featuring direct-fit factory flanging, integrated O2 sensor bungs in OE positions, and supplied installation gaskets, it eliminates the need for custom fabrication or pipe expanding.\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;\"\u003e2003-2011 Lincoln Town Car\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;\"\u003eModular 4.6L SOHC 2V \/ Panther Platform (FN36)\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;\"\u003e239 hp \/ 287 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;\"\u003e642161, 642179, 54345, 54346, 30383, 30384\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\u003e2003-2011 Lincoln Town Car Executive (4.6L V8)\u003c\/li\u003e\n  \u003cli\u003e2003-2011 Lincoln Town Car Executive L (4.6L V8)\u003c\/li\u003e\n  \u003cli\u003e2003-2011 Lincoln Town Car Signature (4.6L V8)\u003c\/li\u003e\n  \u003cli\u003e2004-2011 Lincoln Town Car Signature Limited (4.6L V8)\u003c\/li\u003e\n  \u003cli\u003e2004-2011 Lincoln Town Car Signature L (4.6L V8)\u003c\/li\u003e\n  \u003cli\u003e2003 Lincoln Town Car Cartier \u0026amp; Cartier L (4.6L V8)\u003c\/li\u003e\n  \u003cli\u003e2006-2007 Lincoln Town Car Designer Series (4.6L V8)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the Panther Platform Town Car?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2003-2011 Lincoln Town Car equipped with the \u003cstrong\u003eModular 4.6L 2V\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eWill this resolve P0420 and P0430 check engine lights?\u003c\/h4\u003e\n\u003cp\u003eYes, provided ignition and fuel delivery systems operate correctly, the active washcoat restores conversion efficiency within factory threshold limits to extinguish catalyst-related DTCs.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lincoln Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the high-mileage demands of luxury fleet and highway cruiser duty, these direct-replacement converters preserve the whisper-quiet cabin acoustics, smooth low-end torque, and effortless reliability expected of the Town Car platform.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67537737187576,"sku":"DS-E2IG36OI2","price":233.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-lincoln-town-car-2003-2011-4-6l-left-right-1.jpg?v=1790616450","url":"https:\/\/performancechiptuning.com\/es\/products\/catalytic-converter-for-lincoln-town-car-2003-2011-4-6l-left-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}