{"product_id":"catalytic-converter-for-kia-optima-2007-2008-2-4l-rear","title":"Catalytic Converter for Kia Optima (2007-2008) 2.4L Rear","description":"\u003ch2\u003eDirect-Fit Rear Catalytic Converter for 2007-2008 Kia Optima\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit rear catalytic converter replaces the aged emissions unit on the 2007-2008 Kia Optima 2.4L to restore optimal exhaust gas scavenging, clear P0420 diagnostic trouble codes, and ensure complete emissions compliance.\u003c\/p\u003e\u003ch3\u003eThe Stock Kia Optima Catalyst Washcoat Degradation\u003c\/h3\u003e\u003cp\u003eAging catalytic units on high-mileage \u003cstrong\u003eMG\u003c\/strong\u003e chassis vehicles routinely suffer from thermal fatigue, washcoat depletion, and internal carbon fouling. Over hundreds of heat cycles, excessive blow-by and unburnt hydrocarbons from the 2.4L engine cause the factory ceramic substrate to melt or disintegrate. This internal failure chokes exhaust gas expansion, elevates pre-converter cylinder head temperatures, reduces fuel economy, and triggers persistent MIL\/CEL warnings due to degraded oxygen storage capacity.\u003c\/p\u003e\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\u003cp\u003eEngineered as a bolt-on replacement, this unit features a robust stainless steel outer housing and precision-stamped flanges that bolt directly to the factory intermediate exhaust pipes. Internally, a uniform ceramic substrate with a dense precious-metal washcoat ensures rapid light-off times and maximum surface area for chemical conversion of CO and NOx without introducing flow restriction. Built with exact factory hanger brackets and OE-positioned sensor alignment, this assembly installs without cutting or welding, providing leak-free operation and reliable exhaust flow.\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;\"\u003e2007-2008 Kia Optima\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;\"\u003e2.4L Theta II (\u003cstrong\u003eG4KC\u003c\/strong\u003e) \/ \u003cstrong\u003eMG\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;\"\u003e162 hp \/ 164 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\u003e2007 Kia Optima EX Sedan 4-Door 2.4L 2351CC l4 GAS DOHC Naturally Aspirated (Rear)\u003c\/li\u003e\n\u003cli\u003e2007 Kia Optima LX Sedan 4-Door 2.4L 2351CC l4 GAS DOHC Naturally Aspirated (Rear)\u003c\/li\u003e\n\u003cli\u003e2008 Kia Optima EX Sedan 4-Door 2.4L 2351CC l4 GAS DOHC Naturally Aspirated (Rear)\u003c\/li\u003e\n\u003cli\u003e2008 Kia Optima LX Sedan 4-Door 2.4L 2351CC l4 GAS DOHC Naturally Aspirated (Rear)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDoes this fit the MG Optima?\u003c\/strong\u003e\u003cbr\u003eYes, this is a direct fit for the 2007-2008 Kia Optima equipped with the \u003cstrong\u003eG4KC\u003c\/strong\u003e engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this converter clear an active P0420 catalytic efficiency code?\u003c\/strong\u003e\u003cbr\u003eYes, providing oxygen sensors and upstream fuel trims are operating correctly, this unit restores proper catalytic storage to clear efficiency codes.\u003c\/p\u003e\u003ch3\u003eThe Kia Commuter Standard\u003c\/h3\u003e\u003cp\u003eMaintaining daily drivability and factory fuel economy requires precise exhaust backpressure and reliable emissions control that keeps sensor loops fully operational mile after mile.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501093589240,"sku":"DS-E015CEGK2","price":136.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-kia-optima-2007-2008-2-4l-rear-1.jpg?v=1789326003","url":"https:\/\/performancechiptuning.com\/products\/catalytic-converter-for-kia-optima-2007-2008-2-4l-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}