{"product_id":"catalytic-converter-for-toyota-sienna-2004-2010-3-3l-3-5l-rear","title":"Catalytic Converter for Toyota Sienna (2004-2010) 3.3L 3.5L Rear","description":"\u003ch2\u003eDirect-Fit Rear Catalytic Converter for 2004-2010 Toyota Sienna\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit rear catalytic converter replaces the clogged or degraded factory underfloor unit on the 2004-2010 Toyota Sienna to restore correct exhaust backpressure, eliminate emissions-related trouble codes, and reduce toxic tailpipe emissions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Sienna Catalytic Converter Degradation\u003c\/h3\u003e\n\u003cp\u003eAs the second-generation \u003cstrong\u003eXL20\u003c\/strong\u003e platform ages, the factory rear catalytic converter frequently succumbs to thermal fatigue and internal washcoat depletion. High-mileage \u003cstrong\u003e3MZ-FE\u003c\/strong\u003e and \u003cstrong\u003e2GR-FE\u003c\/strong\u003e V6 engines can suffer from minor oil consumption and rich-running cycles, causing carbon deposits to foul the factory ceramic substrate. This thermal breakdown and physical soot loading restrict exhaust gas velocity, elevating backpressure, bogging down acceleration, and triggering persistent P0420\/P0430 diagnostic trouble codes. Furthermore, road brine and thermal cycling routinely corrode the factory exhaust flanges, causing persistent exhaust leaks.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis replacement rear converter assembly is built with a heavy-gauge 409 stainless steel outer casing engineered to withstand harsh road conditions and continuous thermal expansion. Internally, a high-efficiency ceramic honeycomb substrate delivers optimal surface area for noble metal catalysts (platinum, palladium, and rhodium) to cleanly convert unburnt hydrocarbons, carbon monoxide, and NOx. Featuring thick, OE-spec laser-cut flanges, accurate oxygen sensor bungs, and complete installation hardware, this unit bolts directly up to factory hangers without custom cutting or welding.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\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;\"\u003e2004-2010 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;\"\u003e3.3L \u003cstrong\u003e3MZ-FE\u003c\/strong\u003e \/ 3.5L \u003cstrong\u003e2GR-FE\u003c\/strong\u003e \/ \u003cstrong\u003eXL20\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;\"\u003e230–266 hp \/ 242–245 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;\"\u003e\u003cstrong\u003e52400\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004-2006 Toyota Sienna 3.3L V6 (CE, LE, XLE, XLE Limited)\u003c\/li\u003e\n  \u003cli\u003e2007-2010 Toyota Sienna 3.5L V6 (CE, LE, XLE, Limited)\u003c\/li\u003e\n  \u003cli\u003eFWD and AWD configurations (Rear \/ Underfloor position)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the XL20 Sienna?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2004-2010 Toyota Sienna equipped with the \u003cstrong\u003e3MZ-FE\u003c\/strong\u003e or \u003cstrong\u003e2GR-FE\u003c\/strong\u003e engine in the rear underfloor position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this resolve catalyst efficiency DTC codes like P0420?\u003c\/strong\u003e\u003cbr\u003e Yes, provided upstream misfires and air-fuel ratio sensor faults are resolved, the fresh washcoat will restore catalytic efficiency and turn off the CEL.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Durability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the extended family hauling and long-distance miles demanded of the Toyota Sienna, this converter provides robust structural integrity and factory exhaust clearance for reliable daily service.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501118099704,"sku":"DS-E6CRR3AWW","price":147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-toyota-sienna-2004-2010-3-3l-3-5l-rear-1.jpg?v=1789326137","url":"https:\/\/performancechiptuning.com\/es\/products\/catalytic-converter-for-toyota-sienna-2004-2010-3-3l-3-5l-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}