{"product_id":"catalytic-converter-for-acura-rl-2005-2008-3-5l","title":"Catalytic Converter for Acura RL (2005-2008) 3.5L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Manifold Catalytic Converters for 2005-2008 Acura RL (KB1)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This direct-fit manifold catalytic converter pair replaces both front and rear bank units on the 2005-2008 Acura RL (\u003cstrong\u003eKB1\u003c\/strong\u003e) with the \u003cstrong\u003eJ35A8 3.5L V6\u003c\/strong\u003e to restore emissions compliance and exhaust flow.\u003c\/p\u003e\u003ch3\u003eThe Stock Acura RL Converter Failure\u003c\/h3\u003e\u003cp\u003eClose-coupled to the cylinder heads on the \u003cstrong\u003eKB1\u003c\/strong\u003e chassis, factory manifold converters on the \u003cstrong\u003eJ35A8 3.5L V6\u003c\/strong\u003e endure extreme thermal cycling and heat soak. Over time, repeated expansion fractures or glazes the internal ceramic substrate, separating it from its mat. As washcoat efficiency drops, downstream O2 sensors detect oxygen storage loss, triggering \u003cstrong\u003eP0420\u003c\/strong\u003e and \u003cstrong\u003eP0430\u003c\/strong\u003e codes while broken substrate restricts exhaust flow.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms of a Failing OEM Catalytic Converter\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Engine Light:\u003c\/strong\u003e Persistent \u003cstrong\u003eP0420\u003c\/strong\u003e or \u003cstrong\u003eP0430\u003c\/strong\u003e codes from degraded catalyst washcoat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate Rattle:\u003c\/strong\u003e Metallic rattling during cold starts or acceleration from fractured ceramic core pieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Restriction:\u003c\/strong\u003e Sluggish throttle response and failed emissions testing from clogged honeycomb passages.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Stainless Catalytic Converter Solution\u003c\/h3\u003e\u003cp\u003eThis complete front and rear bank set uses corrosion-resistant \u003cstrong\u003estainless steel\u003c\/strong\u003e bodies and piping to resist heat cracking and rust. Each unit contains a high-flow \u003cstrong\u003eceramic honeycomb\u003c\/strong\u003e substrate with a precious-metal washcoat calibrated for OBD-II compliance. Built with \u003cstrong\u003e8-inch\u003c\/strong\u003e by \u003cstrong\u003e5-inch\u003c\/strong\u003e bodies, factory cylinder head flanges, and integrated \u003cstrong\u003eO2 sensor ports\u003c\/strong\u003e, both converters bolt directly in place without cutting or welding.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2 x Manifold Catalytic Converters (Left and Right Banks)\u003c\/li\u003e\n\u003cli\u003e2 x Ring Seals\u003c\/li\u003e\n\u003cli\u003e2 x Exhaust Manifold Gaskets\u003c\/li\u003e\n\u003cli\u003e14 x Bolts with Nuts and Washers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\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;\"\u003e2005-2008 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;\"\u003eJ35A8 3.5L V6 \/ KB1\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;\"\u003eEmissions \u0026amp; Substrate\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eEPA Federal (46-State Legal) \/ Ceramic Honeycomb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eInstallation Type\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eDirect Bolt-On OEM Replacement (No Cutting or Welding)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2005 Acura RL 3.5L V6 SH-AWD (\u003cstrong\u003eKB1\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003e2006 Acura RL 3.5L V6 SH-AWD (\u003cstrong\u003eKB1\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003e2007 Acura RL 3.5L V6 SH-AWD (\u003cstrong\u003eKB1\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003e2008 Acura RL 3.5L V6 SH-AWD (\u003cstrong\u003eKB1\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the KB1 RL?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e This is a direct fit for the 2005-2008 Acura RL equipped with the \u003cstrong\u003eJ35A8 3.5L V6\u003c\/strong\u003e engine. \u003cstrong\u003eExcludes 2009-2012 RL 3.7L (KB2) models. EPA Federal compliant only—not CARB approved or legal for vehicles registered in California, New York, Colorado, or Maine.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0420\/P0430 codes, and are O2 sensors included?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes for worn catalysts; O2 sensors are not included.\u003c\/strong\u003e Installing both new converters restores catalyst efficiency to clear \u003cstrong\u003eP0420\u003c\/strong\u003e and \u003cstrong\u003eP0430\u003c\/strong\u003e codes after checking for exhaust leaks and transferring or replacing your O2 sensors.\u003c\/p\u003e\u003ch4\u003eAre gaskets and mounting hardware included for installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Both ring seals, exhaust manifold gaskets, and 14 bolts with nuts and washers are included. Let the exhaust cool completely, soak fasteners with penetrating oil, and torque evenly.\u003c\/p\u003e\u003ch3\u003eThe Acura Precision Standard\u003c\/h3\u003e\u003cp\u003eReplacing both bank converters simultaneously restores balanced scavenging and throttle response across the \u003cstrong\u003eJ35A8\u003c\/strong\u003e V6. Engineered for OEM flange alignment and OBD-II emissions accuracy, this pair returns your \u003cstrong\u003eKB1\u003c\/strong\u003e RL to clean, rattle-free operation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68085766357240,"sku":"DS-EB2BXW0MO","price":256.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-acura-rl-2005-2008-3-5l-1.jpg?v=1794550542","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-acura-rl-2005-2008-3-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}