{"product_id":"catalytic-converter-for-acura-rl-2009-2012-3-7l-front-left-right","title":"Catalytic Converter for Acura RL (2009-2012) 3.7L Front Left \u0026 Right","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Replacement Front Catalytic Converters for 2009-2012 Acura RL (KB2)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Front Left and Right Catalytic Converter Set replaces deteriorated factory catalytic units on the 2009-2012 RL to clear catalyst efficiency DTCs (P0420\/P0430) and restore exhaust flow without requiring custom fabrication.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Acura RL Catalytic Converter Degradation\u003c\/h3\u003e\n\u003cp\u003eThe high-compression 3.7L V6 runs demanding thermal cycles that degrade factory ceramic washcoats over extended mileage. In the \u003cstrong\u003eKB2\u003c\/strong\u003e engine bay, excessive exhaust gas temperatures break down catalyst substrates, causing micro-fractures, washcoat dusting, and cell sintering. This degradation triggers recurring P0420\/P0430 DTCs, trips downstream O2 sensor flags, increases backpressure across cylinder banks, and chokes top-end performance on the high-output \u003cstrong\u003eJ37A2\u003c\/strong\u003e powerplant.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eManufactured as direct-fit replacements for OEM parts \u003cstrong\u003e16643\u003c\/strong\u003e and \u003cstrong\u003e16658\u003c\/strong\u003e, these bank-specific front converters utilize corrosion-resistant stainless steel housings and durable ceramic honeycombs loaded with uniform precious metal washcoats. Thick, precision-machined flanges resist thermal warping and prevent high-pressure exhaust leaks at the manifold and intermediate junctions. Designed to re-establish proper scavenging dynamics and lower restriction on high-mileage platforms.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Front Left Catalytic Converter\u003c\/li\u003e\n  \u003cli\u003e1x Front Right Catalytic Converter\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;\"\u003e2009-2012 Acura RL\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;\"\u003eJ37A2 \/ KB2\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;\"\u003e300 hp \/ 271 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;\"\u003e16643, 16658\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\u003e2009 Acura RL 3.7L V6 (Base, Technology, Advance)\u003c\/li\u003e\n  \u003cli\u003e2010 Acura RL 3.7L V6 (Base, Technology, Advance)\u003c\/li\u003e\n  \u003cli\u003e2011 Acura RL 3.7L V6 (Base, Technology, Advance)\u003c\/li\u003e\n  \u003cli\u003e2012 Acura RL 3.7L V6 (Base, Technology, Advance)\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 KB2 RL?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2009-2012 Acura RL equipped with the \u003cstrong\u003eJ37A2\u003c\/strong\u003e engine. \u003cstrong\u003eNote: This assembly is EPA-compliant but not certified for sale or use in California or New York emissions applications.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eWill the OEM heat shields bolt directly up?\u003c\/h4\u003e\n\u003cp\u003eNo, aftermarket casing geometry means the factory heat shield does not fit perfectly and may require minor modification or removal during professional installation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Acura Engineering Caliber\u003c\/h3\u003e\n\u003cp\u003eThe SH-AWD drivetrain demands exact cylinder balance and smooth exhaust scavenging; these converters restore factory backpressure metrics and maintain clean engine management feedback across the entire rev range.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67563091886328,"sku":"DS-EUENME4AB","price":118.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-acura-rl-2009-2012-3-7l-front-left-right-1.jpg?v=1791001014","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-acura-rl-2009-2012-3-7l-front-left-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}