{"product_id":"catalytic-converter-for-toyota-sienna-2011-2015-3-5l-left-right","title":"Catalytic Converter for Toyota Sienna (2011-2015) 3.5L Left \u0026 Right","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Manifold Catalytic Converter Set for 2011-2015 Toyota Sienna (XL30)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The manifold catalytic converter set replaces degraded factory catalytic units on the 2011-2015 Toyota Sienna to eliminate P0420\/P0430 efficiency codes, normalize exhaust backpressure, and restore clean tailpipe emissions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Sienna Catalytic Substrate Degradation\u003c\/h3\u003e\n\u003cp\u003eOver extended mileage and repeated thermal cycles, the factory manifold converters on the \u003cstrong\u003eXL30\u003c\/strong\u003e platform suffer from washcoat depletion and thermal fracturing. As the ceramic internal substrate loses its precious-metal oxygen storage capacity, the downstream oxygen sensors detect incomplete hydrocarbon and NOx reduction, immediately triggering \u003cstrong\u003eP0420\u003c\/strong\u003e and \u003cstrong\u003eP0430\u003c\/strong\u003e diagnostic trouble codes. In severe cases, internal ceramic breakdown causes physical rattling, exhaust restriction, elevated exhaust gas temperatures, and noticeable loss of engine responsiveness under load.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered specifically for the transverse-mounted \u003cstrong\u003e2GR-FE\u003c\/strong\u003e 3.5L V6, this direct-fit replacement pair features heavy-gauge stainless steel outer shells designed to resist thermal stress and exterior corrosion. High-flow ceramic honeycomb substrates maximize surface contact area for rapid light-off and stable catalyst conversion without choking exhaust velocity. Precision-machined, OEM-style mounting flanges and integrated pre-catalytic oxygen sensor bungs bolt directly to factory cylinder head ports and downpipe connections, ensuring complete seal integrity with zero cutting or custom fabrication required.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Left-side manifold catalytic converter\u003c\/li\u003e\n  \u003cli\u003e1 x Right-side manifold catalytic converter\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;\"\u003e2011-2015 Toyota Sienna\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\u003e2GR-FE\u003c\/strong\u003e (3.5L V6) \/ \u003cstrong\u003eXL30\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;\"\u003e266 hp \/ 245 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\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2011-2015 Toyota Sienna (Base, LE, SE, XLE, Limited) 3.5L V6 FWD \/ AWD\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 XL30 Sienna?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2011-2015 Toyota Sienna equipped with the \u003cstrong\u003e2GR-FE\u003c\/strong\u003e 3.5L engine. \u003cstrong\u003eNote: EPA 48-state compliant; cannot be shipped to or registered in California, Colorado, New York, or Maine.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to weld or cut the exhaust piping during installation?\u003c\/h4\u003e\n\u003cp\u003eNo, this unit features factory-matched flanges and pre-positioned O2 sensor ports designed for direct bolt-on mechanical replacement.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eMaintain factory powertrain calibration, clear persistent catalyst check engine codes, and keep your Sienna fully road-ready with high-integrity exhaust components matched to factory structural tolerances.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67901705650424,"sku":"DS-EQQ7GEH50","price":246.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-toyota-sienna-2011-2015-3-5l-left-right-1.jpg?v=1793340522","url":"https:\/\/performancechiptuning.com\/es\/products\/catalytic-converter-for-toyota-sienna-2011-2015-3-5l-left-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}