{"product_id":"catalytic-converter-for-honda-accord-2010-2012-3-5l-bank-1-bank-2","title":"Catalytic Converter for Honda Accord (2010-2012) 3.5L Bank 1 \u0026 Bank 2","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Bank 1 \u0026amp; Bank 2 Catalytic Converter Set for 2010-2012 Honda Accord (CP3\/CS2)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Direct-Fit Bank 1 \u0026amp; Bank 2 Catalytic Converter Set replaces worn or contaminated front and rear exhaust manifold converters on the 2010-2012 Accord 3.5L to eliminate P0420\/P0430 catalytic deficiency codes and restore unrestricted exhaust flow.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Honda Accord Substrate Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory manifold-mounted catalytic converters on the \u003cstrong\u003eCP3\u003c\/strong\u003e (Sedan) and \u003cstrong\u003eCS2\u003c\/strong\u003e (Coupe) chassis operate in high-temperature environments directly off the cylinder heads. Over time, heat cycling and oil blow-by associated with Honda's VCM (Variable Cylinder Management) system contaminate the OEM ceramic washcoat. This poisoning of internal precious metals leads to sintered substrate degradation, localized restriction, and persistent check engine lights (DTC P0420 and P0430) that reduce engine efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eManufactured as a bolt-in replacement assembly for the \u003cstrong\u003eJ35Z\u003c\/strong\u003e platform, this set features heavy-gauge, corrosion-resistant stainless steel shells paired with resilient ceramic honeycomb substrates. The catalyst brick is engineered with balanced cell density to optimize precious metal contact, converting hydrocarbons, carbon monoxide, and NOx into inert gases without producing parasitic exhaust backpressure. Precision-machined, laser-cut mounting flanges and integrated O2 sensor bungs allow a direct bolt-on installation using standard factory hang points.\u003c\/p\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;\"\u003e2010-2012 Honda Accord 3.5L\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\u003eJ35Z2 \/ J35Z3\u003c\/strong\u003e \/ \u003cstrong\u003eCP3 \/ CS2\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;\"\u003e271 hp \/ 254 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\u003e16643, 16658\u003c\/strong\u003e\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\u003e2010-2012 Honda Accord EX 3.5L V6 (Sedan \/ Coupe)\u003c\/li\u003e\n  \u003cli\u003e2010-2012 Honda Accord EX-L 3.5L V6 (Sedan \/ Coupe)\u003c\/li\u003e\n  \u003cli\u003ePositions: Bank 1 (Rear Manifold) \u0026amp; Bank 2 (Front Manifold)\u003c\/li\u003e\n  \u003cli\u003eEmissions Standard: EPA Compliant (Not legal for sale or use in California or New York)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the CP3\/CS2 Accord?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2010-2012 Honda Accord equipped with the \u003cstrong\u003eJ35Z\u003c\/strong\u003e 3.5L V6 engine.\u003c\/p\u003e\n\n\u003ch4\u003eWill this unit clear my P0420 and P0430 trouble codes?\u003c\/h4\u003e\n\u003cp\u003eYes, the catalyst washcoat restores emissions conversion efficiency to factory standards, resolving threshold efficiency diagnostic codes once installed properly.\u003c\/p\u003e\n\n\u003ch3\u003eThe Honda Powertrain Caliber\u003c\/h3\u003e\n\u003cp\u003eRestore the clean, high-revving throttle response and balanced exhaust acoustic profile engineered into Honda's naturally aspirated V6 with accurate, heavy-duty replacement hardware.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67537738531064,"sku":"DS-EPGH8ZQDZ","price":117.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-honda-accord-2010-2012-3-5l-bank-1-bank-2-2.jpg?v=1790616530","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-honda-accord-2010-2012-3-5l-bank-1-bank-2","provider":"Performance Chip Tuning","version":"1.0","type":"link"}