{"product_id":"catalytic-converter-for-lincoln-mks-mkz-2013-2016-3-7l-front-left-right","title":"Catalytic Converter for Lincoln MKS MKZ (2013-2016) 3.7L Front Left \u0026 Right","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Front Manifold Catalytic Converter Set for 2013-2016 Lincoln MKS \u0026amp; MKZ (D3 \/ CD4)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The front manifold catalytic converter set replaces failed or fouled factory converters on the 2013-2016 Lincoln MKS and MKZ to eliminate P0420\/P0430 emissions fault codes and restore optimal exhaust gas flow.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lincoln MKS \u0026amp; MKZ Catalyst Substrate Deterioration\u003c\/h3\u003e\n\u003cp\u003eFactory ceramic monolithic substrates on the transverse-mounted **3.7L Cyclone Ti-VCT V6** face severe thermal degradation due to tight packaging against the firewall on the **D3** and **CD4** platforms. Over time, high exhaust gas temperatures (EGTs) accelerate washcoat sintering, causing matrix crumbling and precious metal deactivation. This structural failure triggers recurring downstream oxygen sensor DTCs (**P0420\/P0430**), increases exhaust backpressure, and restricts high-RPM volumetric efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis matched Bank 1 and Bank 2 manifold catalytic converter assembly features high-flow ceramic honeycomb cores loaded with an efficient washcoat formulation for thorough hydrocarbon and NOx reduction. Manufactured with durable stainless steel tubing and heavy-duty, robotically TIG-welded flanges, these units resist thermal shock, flange warping, and exhaust leaks. Precision CNC-formed mounting flanges align with OE specifications **674256** and **674255**, providing direct bolt-on installation to the factory exhaust manifolds and downpipes without cutting or welding.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Front Left (Bank 2) Catalytic Converter Assembly\u003c\/li\u003e\n  \u003cli\u003e1x Front Right (Bank 1) Catalytic Converter Assembly\u003c\/li\u003e\n  \u003cli\u003e1x Installation Hardware and Gasket Kit\u003c\/li\u003e\n\u003c\/ul\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;\"\u003e2013-2016 Lincoln MKS, MKZ\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;\"\u003e3.7L Cyclone Ti-VCT V6 \/ D3 (MKS), CD4 (MKZ)\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;\"\u003e300-304 hp \/ 277-279 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;\"\u003e674256, 674255, 1378, 1379, 19516, 19517, 30584, 30585\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\u003e2013-2016 Lincoln MKS 3.7L V6 (FWD \/ AWD)\u003c\/li\u003e\n  \u003cli\u003e2013-2016 Lincoln MKZ 3.7L V6 (FWD \/ AWD)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the D3 and CD4 MKS,MKZ?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2013-2016 Lincoln MKS and MKZ equipped with the **3.7L Cyclone** engine. \u003cstrong\u003eNon-CARB compliant: 46-state legal; not legal for sale or use in California, New York, Colorado, or Maine emissions applications, and does not fit 2.0L or 3.5L EcoBoost models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eAre mounting gaskets included in this package?\u003c\/h4\u003e\n\u003cp\u003eYes, the package includes installation accessories and direct-fit flange gaskets required for complete installation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lincoln Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to tight dimensional tolerances, this direct-fit catalytic pair restores proper backpressure and emissions compliance while maintaining the factory-quiet cabin refinement expected of a Lincoln platform.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67563053351160,"sku":"DS-EHKM18MGV","price":153.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-lincoln-mks-mkz-2013-2016-3-7l-front-left-right-1.jpg?v=1790999909","url":"https:\/\/performancechiptuning.com\/products\/catalytic-converter-for-lincoln-mks-mkz-2013-2016-3-7l-front-left-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}