{"product_id":"catalytic-converter-for-cadillac-escalade-1999-2000-5-7l-front-left-right-rear","title":"Catalytic Converter for Cadillac Escalade (1999-2000) 5.7L Front Left \u0026 Right \u0026 Rear","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit High-Flow Catalytic Converter Set for 1999-2000 Cadillac Escalade (GMT400)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit catalytic converter assembly replaces degraded or clogged factory emissions units on the 1999-2000 Escalade to restore exhaust velocity, eliminate P0420\/P0430 diagnostic trouble codes, and reduce exhaust backpressure on the engine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Cadillac Escalade Exhaust Restriction and Substrate Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory catalytic converters on the first-generation \u003cstrong\u003eGMT400\u003c\/strong\u003e platform are prone to internal ceramic substrate breakdown, thermal fatigue, and heavy carbon contamination after decades of heat cycles. The factory \u003cstrong\u003eL31 Vortec 5700\u003c\/strong\u003e V8 generates substantial thermal stress and oil vapor deposits that choke the dense OEM ceramic bricks over time. This restriction elevates exhaust gas temperatures (EGTs), stifles volumetric efficiency under load, severely reduces towing power, and triggers persistent check engine warnings.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a complete front and rear assembly, this replacement set features high-grade stainless steel outer housings coupled with durable, flow-optimized ceramic honeycomb substrates. Smooth mandrel bends maintain uniform cross-sectional area to eliminate turbulence and improve exhaust scavenging from the cylinder heads. Heavy-gauge factory-style flanges, precision-cut seals, and included hardware eliminate exhaust leaks and ensure precise alignment with original manifold downpipes and intermediate exhaust sections without fabrication.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Front Left Catalytic Converter Section\u003c\/li\u003e\n  \u003cli\u003e1x Front Right Catalytic Converter Section\u003c\/li\u003e\n  \u003cli\u003e1x Rear Catalytic Converter Section\u003c\/li\u003e\n  \u003cli\u003eMounting Bolts\u003c\/li\u003e\n  \u003cli\u003eHardware Screws\u003c\/li\u003e\n  \u003cli\u003eExhaust Flange Gasket\u003c\/li\u003e\n  \u003cli\u003eExhaust Seal\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 Cadillac Escalade\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;\"\u003eL31 Vortec 5.7L V8 \/ GMT400\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;\"\u003e255 hp \/ 330 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;\"\u003e645328, 50239, 50410\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 Cadillac Escalade Base 5.7L V8 (L31)\u003c\/li\u003e\n  \u003cli\u003e2000 Cadillac Escalade Base 5.7L V8 (L31)\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 GMT400 Escalade?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct bolt-on fit for the 1999-2000 Cadillac Escalade equipped with the \u003cstrong\u003eL31\u003c\/strong\u003e 5.7L engine. \u003cstrong\u003eNon-CARB compliant: Not legal for sale or use in California, New York, Colorado, or Maine emissions applications.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eIs cutting or welding required for installation?\u003c\/h4\u003e\n\u003cp\u003eNo, this unit is engineered as a true bolt-on direct replacement using OEM-style flange interfaces and included installation hardware.\u003c\/p\u003e\n\n\u003ch3\u003eThe Cadillac Durability Standard\u003c\/h3\u003e\n\u003cp\u003eConstructed to manage the heavy payload and towing demands of the full-size \u003cstrong\u003eGMT400\u003c\/strong\u003e chassis, this exhaust assembly delivers continuous high-temperature durability and restores factory torque delivery.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67564541903096,"sku":"DS-EV3AEP9DR","price":202.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-cadillac-escalade-1999-2000-5-7l-front-left-right-rear-1.jpg?v=1791041752","url":"https:\/\/performancechiptuning.com\/de\/products\/catalytic-converter-for-cadillac-escalade-1999-2000-5-7l-front-left-right-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}