{"product_id":"catalytic-converter-for-infiniti-qx56-2004-2010-5-6l-left-right","title":"Catalytic Converter for Infiniti QX56 (2004-2010) 5.6L Left \u0026 Right","description":"\u003ch2\u003eDirect-Fit Catalytic Converter Set for 2004-2010 Infiniti QX56\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Left \u0026amp; Right Catalytic Converter Set replaces deteriorated factory catalytic converters on the 2004-2010 Infiniti QX56 to restore proper exhaust velocity, clear catalyst efficiency trouble codes, and ensure federal emissions compliance.\u003c\/p\u003e\u003ch3\u003eThe Stock Infiniti QX56 Catalyst Breakdown and Reversion Risk\u003c\/h3\u003e\u003cp\u003eThe factory exhaust manifolds and integrated catalytic converters on the \u003cstrong\u003eJA60\u003c\/strong\u003e platform suffer from severe thermal cycling fatigue. Over extended heat cycles and high-load towing conditions, the OEM ceramic washcoat degrades, causing core dusting, micro-fractures, and structural collapse. On the \u003cstrong\u003eVK56DE\u003c\/strong\u003e engine, exhaust valve overlap can draw abrasive ceramic dust back into the combustion chambers via reversion, causing catastrophic cylinder wall scoring and oil consumption alongside recurring P0420 and P0430 DTCs.\u003c\/p\u003e\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\u003cp\u003eThis Left \u0026amp; Right direct-fit assembly utilizes high-grade tubular 409 stainless steel shells engineered to resist corrosion and thermal warping. The high-porosity ceramic honeycomb substrate features an optimal precious metal washcoat loading that ensures reliable catalytic reduction without creating restrictive exhaust backpressure. Precision laser-cut flanges, mandrel-bent primary pipe sections, and factory-positioned O2 sensor bungs allow a bolt-on installation to OEM downpipes and manifolds with no cutting or custom fabrication required.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\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;\"\u003e2004-2010 Infiniti QX56\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;\"\u003e\n\u003cstrong\u003eVK56DE\u003c\/strong\u003e \/ \u003cstrong\u003eJA60\u003c\/strong\u003e\n\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;\"\u003e315-320 hp \/ 390-393 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;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2004 Infiniti QX56 Base 5.6L V8 (VK56DE)\u003c\/li\u003e\n\u003cli\u003e2005 Infiniti QX56 Base 5.6L V8 (VK56DE)\u003c\/li\u003e\n\u003cli\u003e2006 Infiniti QX56 Base 5.6L V8 (VK56DE)\u003c\/li\u003e\n\u003cli\u003e2007 Infiniti QX56 Base 5.6L V8 (VK56DE)\u003c\/li\u003e\n\u003cli\u003e2008 Infiniti QX56 Base 5.6L V8 (VK56DE)\u003c\/li\u003e\n\u003cli\u003e2009 Infiniti QX56 Base 5.6L V8 (VK56DE)\u003c\/li\u003e\n\u003cli\u003e2010 Infiniti QX56 Base 5.6L V8 (VK56DE)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDoes this fit the JA60 QX56?\u003c\/strong\u003e\u003cbr\u003eYes, this is a direct fit for the 2004-2010 Infiniti QX56 equipped with the \u003cstrong\u003eVK56DE\u003c\/strong\u003e engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this resolve P0420 and P0430 diagnostic trouble codes?\u003c\/strong\u003e\u003cbr\u003eYes, properly installing these high-efficiency converters will restore emissions parameters and eliminate catalyst efficiency fault codes under EPA federal compliance standards.\u003c\/p\u003e\u003ch3\u003eThe Infiniti Durability Standard\u003c\/h3\u003e\u003cp\u003eEngineered to handle the heavy towing demands and sustained thermal loads of full-size luxury utility platforms, this assembly delivers factory-spec flow dynamics, precise backpressure balance, and long-term mechanical reliability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501739938040,"sku":"DS-EY51JY5YC","price":337.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-infiniti-qx56-2004-2010-5-6l-left-right-1.jpg?v=1789331605","url":"https:\/\/performancechiptuning.com\/products\/catalytic-converter-for-infiniti-qx56-2004-2010-5-6l-left-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}