{"product_id":"catalytic-converter-for-hyundai-elantra-2017-2020-2-0l-front","title":"Catalytic Converter for Hyundai Elantra (2017-2020) 2.0L Front","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Front Manifold Catalytic Converter for 2017-2020 Hyundai Elantra (AD)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The front manifold catalytic converter replaces the compromised factory emissions unit on the 2017-2020 Elantra to eliminate P0420 diagnostic trouble codes, restore exhaust scavenging efficiency, and ensure federal emissions compliance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Hyundai Elantra Manifold Catalyst Degradation\u003c\/h3\u003e\n\u003cp\u003eIn the \u003cstrong\u003eAD\u003c\/strong\u003e chassis Elantra, the integrated exhaust manifold catalyst experiences extreme thermal cycling due to its close-coupled placement against the cylinder head. Over high mileage cycles, thermal shock and engine oil vapor carryover cause the factory washcoat to degrade and the ceramic core to sinter or crumble. This degradation triggers recurring check engine lights with trouble codes \u003cstrong\u003eP0420\u003c\/strong\u003e or \u003cstrong\u003eP0430\u003c\/strong\u003e, emits a rotten-egg sulfur odor, and generates mechanical substrate rattling. Furthermore, partial honeycomb blockages increase exhaust backpressure, causing sluggish throttle response and poor fuel economy under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a bolt-on replacement for the \u003cstrong\u003eNu 2.0L (G4NA)\u003c\/strong\u003e powertrain, this assembly utilizes a corrosion-resistant stainless steel body with robotic TIG-welded seams for maximum structural rigidity under high thermal loads. Internally, a high-flow ceramic honeycomb substrate features a balanced precious metal loading that converts carbon monoxide, hydrocarbons, and oxides of nitrogen into inert emissions. Laser-cut mating flanges match OEM head ports and downstream exhaust piping perfectly, while factory-located pre- and post-catalyst oxygen sensor bungs maintain proper closed-loop fuel trim monitoring without modifications.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Front Manifold Catalytic Converter\u003c\/li\u003e\n  \u003cli\u003eExhaust Manifold and Downpipe Gaskets\u003c\/li\u003e\n  \u003cli\u003eMounting Hardware\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;\"\u003e2017-2020 Hyundai Elantra\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;\"\u003eNu 2.0L (G4NA) \/ AD\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;\"\u003e147 hp \/ 132 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;\"\u003e16987\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\u003e2017-2020 Hyundai Elantra 2.0L (SE, SEL, Value Edition, Limited)\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 AD Elantra?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2017-2020 Hyundai Elantra equipped with the \u003cstrong\u003eNu 2.0L (G4NA)\u003c\/strong\u003e engine. \u003cstrong\u003eNon-CARB compliant: Not legal for sale, installation, or use on vehicles registered in California, Colorado, New York, or Maine.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eMust mechanical engine issues be resolved prior to installation?\u003c\/h4\u003e\n\u003cp\u003eYes, any active engine misfires, oil consumption issues, or coolant leaks must be fully repaired beforehand, as unburnt fuel and chemical contaminants will melt or poison the new ceramic substrate.\u003c\/p\u003e\n\n\u003ch3\u003eThe Hyundai Precision Fit\u003c\/h3\u003e\n\u003cp\u003eBuilt to factory manifold dimensional tolerances, this direct replacement maintains the exact exhaust backpressure profiles and sensor sampling rates required by Hyundai's engine management systems to ensure error-free daily drivability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67896165269752,"sku":"DS-ETP7GA8D4","price":101.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-hyundai-elantra-2017-2020-2-0l-front-1.jpg?v=1793293352","url":"https:\/\/performancechiptuning.com\/products\/catalytic-converter-for-hyundai-elantra-2017-2020-2-0l-front","provider":"Performance Chip Tuning","version":"1.0","type":"link"}