{"product_id":"catalytic-converter-for-kia-optima-2009-2015-2-4l","title":"Catalytic Converter for Kia Optima (2009-2015) 2.4L","description":"\u003ch2\u003eDirect-Fit Stainless Steel Catalytic Converter for 2009-2015 Kia Optima\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eRestores proper exhaust scavenging, factory emissions compliance, and engine backpressure parameters for Theta II-equipped Optima sedans.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Optima Manifold Catalyst Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory close-coupled manifold converters on the 2.4L Theta II engine endure aggressive thermal cycling and continuous exposure to rich exhaust pulses during cold-start light-off. Over time, high exhaust gas temperatures (EGTs) degrade the washcoat and cause the ceramic honeycomb matrix to sinter, fragment, or foul. This substrate breakdown restricts exhaust flow, spikes pre-catalyst backpressure, triggers persistent P0420 diagnostic trouble codes, and progressively robs the engine of volumetric efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a bolt-on assembly, this replacement catalytic converter utilizes a high-grade stainless steel outer shell designed to resist road salt corrosion and severe thermal expansion without flange warping. Internally, a high-flow ceramic honeycomb substrate is coated with active precious metal loadings to maintain efficient catalytic reduction and oxidation of NOx, CO, and hydrocarbons. Precision robotic-welded flanges and integrated oxygen sensor bungs ensure a direct, leak-free seal to the cylinder head and downpipe, eliminating exhaust leaks without 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;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2009-2015 Kia Optima\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2.4L Theta II (G4KE\/G4KJ) \/ MG \u0026amp; TF Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e175-200 hp \/ 169-186 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eBER458085 (Interchange: 674-128)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2009-2010 Kia Optima 2.4L L4 (MG Chassis)\u003c\/li\u003e\n  \u003cli\u003e2011-2015 Kia Optima 2.4L L4 (TF Chassis)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Kia Direct-Fit Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for straightforward bench-to-bay replacement, this unit preserves factory sensor orientation and harness clearance to ensure zero check engine lights and seamless ECU closed-loop fueling control.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50489073467640,"sku":"DS-EAHNYZYY6","price":128.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-kia-optima-2009-2015-2-4l-1.jpg?v=1789156853","url":"https:\/\/performancechiptuning.com\/es\/products\/catalytic-converter-for-kia-optima-2009-2015-2-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}