{"product_id":"catalytic-converter-for-lexus-sc300-1999-2000-3-0l","title":"Catalytic Converter for Lexus SC300 (1999-2000) 3.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit EPA Catalytic Converter for 1999-2000 Lexus SC (JZZ31 \/ Z30)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit catalytic converter replaces the aged, restricted factory emissions core on the 1999-2000 Lexus SC to restore proper exhaust gas scavenging, clear OBD-II emissions trouble codes, and eliminate exhaust backpressure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lexus SC Substrate Degradation\u003c\/h3\u003e\n\u003cp\u003eWith decades of thermal cycling, the factory ceramic monolith in the \u003cstrong\u003e2JZ-GE\u003c\/strong\u003e exhaust system suffers from carbon accumulation, internal cell collapse, and washcoat attrition. This leads to typical P0420\/P0430 DTC faults, choked exhaust gas velocity, and elevated exhaust gas temperatures (EGTs). Choked flow upstream creates excessive cylinder backpressure, directly harming volumetric efficiency across the 3.0-liter inline-six powerband.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed from high-grade stainless steel piping and a heavy-gauge outer shell, this unit resists rust-out and thermal fatigue. Internally, a high-efficiency ceramic substrate loaded with an optimized noble metal washcoat accelerates the oxidation of hydrocarbons (HC) and carbon monoxide (CO) while reducing nitrogen oxides (NOx). Precision-welded 4-bolt inlet and 3-bolt outlet flanges match factory downpipe and mid-pipe dimensions for bolt-on installation without custom cutting or pipe expansion.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Direct-Fit Catalytic Converter\u003c\/li\u003e\n  \u003cli\u003eInstallation Gaskets \u0026amp; Hardware Accessories\u003c\/li\u003e\n\u003c\/ul\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;\"\u003e1999-2000 Lexus SC300\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;\"\u003e2JZ-GE \/ JZZ31 (Z30)\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;\"\u003e225 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;\"\u003e1714046030, 1714046080, 674-642\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\u003e1999 Lexus SC300 Base 3.0L L6 (2JZ-GE)\u003c\/li\u003e\n  \u003cli\u003e2000 Lexus SC300 Base 3.0L L6 (2JZ-GE)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the JZZ31 SC?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1999-2000 Lexus SC equipped with the \u003cstrong\u003e2JZ-GE\u003c\/strong\u003e 3.0L engine. \u003cstrong\u003eNote: Restricted for sale\/use in California, New York, Colorado, and Maine due to CARB regulations; not designed for SC400\/SC430 V8 models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eAre new mating gaskets included with this converter?\u003c\/h4\u003e\n\u003cp\u003eYes, installation gaskets and necessary hardware accessories are included in the package for a direct bolt-on seal.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lexus GT Standard\u003c\/h3\u003e\n\u003cp\u003ePreserve the smooth, high-revving performance of your legendary Toyota JDM straight-six platform with an exhaust solution that keeps the CEL off while maintaining classic 2JZ acoustic clarity and exhaust velocity.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67916982354168,"sku":"DS-EYNWP8CEA","price":226.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-lexus-sc300-1999-2000-3-0l-1.jpg?v=1793478994","url":"https:\/\/performancechiptuning.com\/products\/catalytic-converter-for-lexus-sc300-1999-2000-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}