{"product_id":"catalytic-converter-for-nissan-frontier-2005-2019-2-5l-right","title":"Catalytic Converter for Nissan Frontier (2005-2019) 2.5L Right","description":"\u003ch2\u003eDirect-Fit Replacement Catalytic Converter for 2005-2019 Nissan Frontier\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The catalytic converter replaces clogged, cracked, or degraded factory emissions units on the 2005-2019 Frontier to restore exhaust flow velocity, clear OBD-II P0420 fault codes, and maintain legal emissions compliance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Nissan Frontier Catalyst Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust assemblies on the \u003cstrong\u003eD40\u003c\/strong\u003e chassis endure aggressive thermal cycling and chronic vibration from work-duty cycles. Over prolonged mileage, the stock catalytic matrix within the \u003cstrong\u003eQR25DE\u003c\/strong\u003e exhaust stream experiences internal washcoat thermal sintering, cell-wall attrition, and carbon fouling from normal combustion blow-by. This leads to elevated exhaust backpressure, restricted scavenging efficiency, reduced low-end torque during towing, and persistent catalytic threshold trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a bolt-on replacement, this unit features a heavy-gauge 409 stainless steel housing designed to withstand extreme thermal expansion without seam failure or cracking. Inside, a durable ceramic honeycomb substrate is loaded with an optimized washcoat of precious metals (platinum, palladium, and rhodium) to facilitate efficient catalytic conversion of unburned hydrocarbons, carbon monoxide, and NOx. Precision robotic-welded flanges and integrated oxygen sensor bungs mate perfectly with the factory downpipe and intermediate pipe, eliminating exhaust leaks and ensuring hassle-free installation without cutting or custom fabrication.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\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;\"\u003e2005-2019 Nissan Frontier\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\u003eQR25DE\u003c\/strong\u003e (2.5L I4) \/ \u003cstrong\u003eD40\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;\"\u003e152 hp \/ 171 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;\"\u003e\u003cstrong\u003e51687643\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005-2019 Nissan Frontier King Cab (2.5L L4 QR25DE)\u003c\/li\u003e\n  \u003cli\u003e2005-2019 Nissan Frontier S, SV, XE Trims (2.5L L4 QR25DE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the D40 Frontier?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2005-2019 Nissan Frontier equipped with the \u003cstrong\u003eQR25DE\u003c\/strong\u003e 2.5L 4-cylinder engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this converter resolve a P0420 check engine code?\u003c\/strong\u003e\u003cbr\u003e Yes, provided there are no upstream AFR sensor faults or uncorrected engine misfires, this catalytic unit restores the conversion efficiency required to clear catalyst system DTCs.\u003c\/p\u003e\n\n\u003ch3\u003eThe Nissan Truck Durability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the sustained thermal loads of heavy payloads and daily hauling, this assembly delivers heavy-duty structural integrity and correct exhaust gas velocities under full throttle demand.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501705728248,"sku":"DS-ET5N2QYM7","price":191.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-nissan-frontier-2005-2019-2-5l-right-1.jpg?v=1789330043","url":"https:\/\/performancechiptuning.com\/es\/products\/catalytic-converter-for-nissan-frontier-2005-2019-2-5l-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}