{"product_id":"catalytic-converter-for-toyota-highlander-2004-2007-3-3l-rear","title":"Catalytic Converter for Toyota Highlander (2004-2007) 3.3L Rear","description":"\u003ch2\u003eDirect-Fit Rear Catalytic Converter for 2004-2007 Toyota Highlander\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The rear catalytic converter for the 2004-2007 Toyota Highlander restores proper exhaust backpressure and catalytic reduction efficiency to eliminate P0420\/P0430 diagnostic trouble codes and maintain legal tailpipe emissions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Highlander Exhaust Degradation and Substrate Breakdown\u003c\/h3\u003e\n\u003cp\u003eOver extended mileage, the factory rear catalytic converter on the \u003cstrong\u003eXU20\u003c\/strong\u003e platform suffers from thermal cycling fatigue, oil ash contamination, and washcoat sintering. As the internal washcoat depletes, the precious metal catalyst loses oxygen storage capacity, triggering check engine lights and reducing exhaust scavenging efficiency. Structural deterioration of the factory ceramic washcoat can also cause partial substrate collapse, creating restrictive exhaust bottlenecks that hinder engine efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed from high-grade stainless steel with precision-aligned flanges, this direct-fit rear catalytic converter replaces degraded OEM emissions hardware without cutting or custom welding. The unit incorporates a high-flow honeycomb ceramic monolith substrate engineered with optimized precious metal surface loading for efficient NOX, CO, and hydrocarbon reduction. Heavy-duty spun-body construction provides exceptional thermal fatigue resistance and corrosion protection against harsh road salts and underbody debris.\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;\"\u003e2004-2007 Toyota Highlander\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\u003e3MZ-FE\u003c\/strong\u003e (3.3L V6) \/ \u003cstrong\u003eXU20\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 hp \/ 242 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;\"\u003e52398\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2004 Toyota Highlander 3.3L V6 (Base, Limited)\u003c\/li\u003e\n  \u003cli\u003e2005 Toyota Highlander 3.3L V6 (Base, Limited)\u003c\/li\u003e\n  \u003cli\u003e2006 Toyota Highlander 3.3L V6 (Base, Limited, Sport)\u003c\/li\u003e\n  \u003cli\u003e2007 Toyota Highlander 3.3L V6 (Base, Limited, Sport)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the XU20 Highlander?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2004-2007 Toyota Highlander equipped with the \u003cstrong\u003e3MZ-FE\u003c\/strong\u003e 3.3L engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this catalytic converter CARB-compliant for California?\u003c\/strong\u003e\u003cbr\u003e No, this is a direct-replacement EPA-compliant converter and is not legal for sale or use in California or CARB-restricted states.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to withstand harsh thermal loads and prolonged daily driving cycles, this bolt-on catalytic converter delivers uncompromising emissions compliance and corrosion resistance for high-mileage dependability.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501698781432,"sku":"DS-E7MIKLC1N","price":167.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-toyota-highlander-2004-2007-3-3l-rear-1.jpg?v=1789329682","url":"https:\/\/performancechiptuning.com\/products\/catalytic-converter-for-toyota-highlander-2004-2007-3-3l-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}