{"product_id":"catalytic-converter-for-toyota-sienna-2001-2003-3-0l-rear-left-right","title":"Catalytic Converter for Toyota Sienna (2001-2003) 3.0L Rear Left \u0026 Right","description":"\u003ch2\u003eDirect-Fit Rear Catalytic Converter Assembly for 2001-2003 Toyota Sienna\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Direct-Fit Rear Catalytic Converter Assembly restores factory exhaust scavenging and emissions compliance on the 2001-2003 Toyota Sienna 3.0L to eliminate P0420 and P0430 diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Sienna Catalyst Deterioration\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust assemblies on the first-generation \u003cstrong\u003eXL10\u003c\/strong\u003e chassis suffer from thermal fatigue and washcoat sintering after prolonged mileage. In the \u003cstrong\u003e1MZ-FE\u003c\/strong\u003e 3.0L V6, extended thermal cycling and oil vapor carryover break down the internal noble-metal matrix, leading to honeycombed substrate clogging, unmetered backpressure accumulation, reduced fuel efficiency, and recurring catalyst threshold DTCs.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed from heavy-duty tubular steel with a high-porosity ceramic core, this rear left and right catalytic assembly delivers rapid light-off response and optimal chemical conversion of CO, HC, and NOx. Designed for direct OE-position fitment, it integrates precision-cut, leak-free flanges and factory-spec hanger placement without cutting or custom fabrication. The kit includes installation-grade flange bolts, mounting nuts, tension springs, and crush gaskets to guarantee an airtight exhaust seal against corrosive exhaust gas leaks.\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;\"\u003e2001-2003 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\u003e1MZ-FE\u003c\/strong\u003e (3.0L V6) \/ \u003cstrong\u003eXL10\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;\"\u003e210 hp \/ 220 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\n\u003cstrong\u003e40432\u003c\/strong\u003e, \u003cstrong\u003e16322\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2001 Toyota Sienna CE, LE, XLE 3.0L V6 (Rear Left \u0026amp; Right)\u003c\/li\u003e\n  \u003cli\u003e2002 Toyota Sienna CE, LE, XLE, Symphony 3.0L V6 (Rear Left \u0026amp; Right)\u003c\/li\u003e\n  \u003cli\u003e2003 Toyota Sienna CE, LE, XLE 3.0L V6 (Rear Left \u0026amp; Right)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the XL10 Sienna?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2001-2003 Toyota Sienna \u003cstrong\u003eXL10\u003c\/strong\u003e chassis equipped with the \u003cstrong\u003e1MZ-FE\u003c\/strong\u003e 3.0L V6 engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this resolve downstream oxygen sensor check engine lights?\u003c\/strong\u003e\u003cbr\u003e Yes, replacing a degraded factory substrate with this complete assembly restores proper catalytic efficiency and clears active P0420\/P0430 DTC faults when O2 sensors are functioning properly.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to match OEM duty-cycle demands, this assembly maintains factory backpressure limits to protect internal valves, optimize fuel trim parameters, and ensure dependable cross-country durability for family transport.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501063475448,"sku":"DS-EOQGI872W","price":130.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-toyota-sienna-2001-2003-3-0l-rear-left-right-1.jpg?v=1789325880","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-toyota-sienna-2001-2003-3-0l-rear-left-right","provider":"Performance Chip Tuning","version":"1.0","type":"link"}