{"product_id":"exhaust-muffler-kit-for-toyota-sienna-2004-2010-3-3l-3-5l-fwd","title":"Exhaust Muffler Kit for Toyota Sienna (2004-2010) 3.3L 3.5L FWD","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Stainless Steel Exhaust Muffler Kit for 2004-2010 Toyota Sienna (XL20)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Exhaust Muffler Kit replaces deteriorating factory center resonators and rear mufflers on the 2004-2010 Toyota Sienna to resolve hazardous exhaust leaks, restore proper exhaust backpressure, and eliminate interior drone.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Sienna Flange Corrosion \u0026amp; Baffle Rot\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust assemblies on the second-generation \u003cstrong\u003eXL20\u003c\/strong\u003e chassis are constructed with mild aluminized tubing and crimped-seam mufflers highly susceptible to road salt oxidation and acid condensation pooling. Over time, road vibration and thermal cycling lead to severe stress cracking at the intermediate flex joints, rusted-out resonator welds, and broken flange connections. When the internal acoustic baffles rust loose, the system develops persistent low-frequency cabin resonance, dangerous underbody exhaust gas discharge, and compromised scavenging efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a bolt-on replacement, this complete system uses polished \u003cstrong\u003eSUS201 stainless steel\u003c\/strong\u003e to provide far superior corrosion resistance and tensile durability over original mild steel piping. Smooth, mandrel-bent sections ensure unrestricted exhaust gas routing for both the \u003cstrong\u003e3MZ-FE\u003c\/strong\u003e and \u003cstrong\u003e2GR-FE\u003c\/strong\u003e powerplants. Heavy-duty stamped resonator and muffler housings are densely packed to attenuate harsh exhaust pulses back to factory decibel specifications. Standardized OEM-profile flange junctions and slip-fit connections guarantee an airtight seal using standard shop hand tools.\u003c\/p\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;\"\u003e2004-2010 Toyota Sienna FWD\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 \u0026amp; 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;\"\u003e215-266 hp \/ 222-245 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\n\u003cstrong\u003e53576\u003c\/strong\u003e, \u003cstrong\u003e53755\u003c\/strong\u003e, \u003cstrong\u003e56166\u003c\/strong\u003e, \u003cstrong\u003e68460\u003c\/strong\u003e, \u003cstrong\u003eEE68460\u003c\/strong\u003e, \u003cstrong\u003eTY39505\u003c\/strong\u003e, \u003cstrong\u003eTY39545\u003c\/strong\u003e\n\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\u003e2004-2006 Toyota Sienna FWD with 3.3L V6 (\u003cstrong\u003e3MZ-FE\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e2007-2010 Toyota Sienna FWD with 3.5L V6 (\u003cstrong\u003e2GR-FE\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003eFWD models only (does not fit AWD chassis configurations)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the XL20 Sienna?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2004-2010 Toyota Sienna equipped with either the 3.3L \u003cstrong\u003e3MZ-FE\u003c\/strong\u003e or 3.5L \u003cstrong\u003e2GR-FE\u003c\/strong\u003e engine on front-wheel-drive platforms.\u003c\/p\u003e\n\n\u003ch4\u003eDoes this exhaust replacement require cutting or welding?\u003c\/h4\u003e\n\u003cp\u003eNo, this direct OEM-replacement system connects via factory-located flange points and included clamps without requiring structural modifications.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Longevity Standard\u003c\/h3\u003e\n\u003cp\u003eManufactured to uphold Toyota's strict functional longevity, this exhaust system preserves factory acoustic levels and withstands harsh seasonal elements for dependable commuter and family transit.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67531033116920,"sku":"DS-E3TQY2QSG","price":376.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-muffler-kit-for-toyota-sienna-2004-2010-3-3l-3-5l-fwd-1.jpg?v=1790528120","url":"https:\/\/performancechiptuning.com\/products\/exhaust-muffler-kit-for-toyota-sienna-2004-2010-3-3l-3-5l-fwd","provider":"Performance Chip Tuning","version":"1.0","type":"link"}