{"product_id":"catalytic-converter-for-toyota-tacoma-1999-2000-2-4l-rear","title":"Catalytic Converter for Toyota Tacoma (1999-2000) 2.4L Rear","description":"\u003ch2\u003eDirect-Fit Rear Catalytic Converter for 1999-2000 Toyota Tacoma\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Direct-Fit Rear Catalytic Converter replaces the degraded or clogged downstream emissions brick on the 1999-2000 Tacoma 2.4L to eliminate P0420 fault codes, normalize exhaust backpressure, and ensure tailpipe emissions compliance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota Tacoma Catalytic Degradation Problem\u003c\/h3\u003e\n\u003cp\u003eOver extended mileage and severe duty cycles, the original secondary catalytic converter on the \u003cstrong\u003eRZN140\/RZN150\u003c\/strong\u003e chassis experiences internal substrate breakdown. Prolonged exposure to unburned hydrocarbons, oil blow-by, and severe heat cycles degrades the factory precious metal washcoat and compromises the ceramic honeycombs. This thermal stress causes internal cracking, cell sintering, and eventual exhaust choking. In the naturally aspirated \u003cstrong\u003e2RZ-FE\u003c\/strong\u003e engine, excessive downstream backpressure induces pumping losses, compromises scavenging dynamics, drops fuel efficiency, and illuminates persistent catalyst system efficiency trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed as a bolt-on assembly, this direct-fit rear converter restores factory exhaust velocity without requiring cutting or custom welding. The core utilizes a high-surface-area ceramic substrate loaded with an engineered washcoat to rapidly oxidize carbon monoxide (CO) and hydrocarbons (HC) while reducing nitrogen oxides (NOx). Housed inside a heavy-gauge, corrosion-resistant steel outer shell, the unit features precision-welded, OE-spec mounting flanges and integrated bracketry aligned with factory isolation hangers. This rigid architecture resists vibration-induced fatigue during heavy hauling while maintaining OEM backpressure levels across the entire operating RPM range.\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;\"\u003e1999-2000 Toyota Tacoma\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;\"\u003e2.4L 2RZ-FE I4 \/ RZN140 \/ RZN150\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;\"\u003e142 hp \/ 160 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\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1999 Toyota Tacoma Base 2.4L L4 - Rear Position\u003c\/li\u003e\n  \u003cli\u003e1999 Toyota Tacoma DLX 2.4L L4 - Rear Position\u003c\/li\u003e\n  \u003cli\u003e2000 Toyota Tacoma Base 2.4L L4 - Rear Position\u003c\/li\u003e\n  \u003cli\u003e2000 Toyota Tacoma DLX 2.4L L4 - Rear 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 RZN140\/RZN150 Tacoma?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 1999-2000 Toyota Tacoma equipped with the 2.4L \u003cstrong\u003e2RZ-FE\u003c\/strong\u003e engine in the downstream rear position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this clear a catalyst efficiency DTC such as P0420?\u003c\/strong\u003e\u003cbr\u003e Yes, replacing a degraded rear converter with this high-efficiency ceramic core assembly restores emissions conversion to OEM thresholds when upstream sensors and engine fueling are operating correctly.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Truck Endurance Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle sustained daily work loads, high thermal cycles, and severe chassis vibration, this rear converter assembly restores the reliability, clean burn, and unhindered power delivery demanded by first-generation Tacoma workhorses.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501165875448,"sku":"DS-EPZHJM2PG","price":157.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-toyota-tacoma-1999-2000-2-4l-rear-1.jpg?v=1789326428","url":"https:\/\/performancechiptuning.com\/products\/catalytic-converter-for-toyota-tacoma-1999-2000-2-4l-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}