{"product_id":"catalytic-converter-for-chevrolet-tahoe-1996-2000-5-7l","title":"Catalytic Converter for Chevrolet Tahoe (1996-2000) 5.7L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Replacement Catalytic Converter for 1996-2000 Chevrolet Tahoe (GMT400)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit catalytic converter replaces clogged or degraded emissions assemblies on the 1996-2000 Tahoe to eliminate catalytic efficiency trouble codes and restore exhaust velocity.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Tahoe Flow Restriction \u0026amp; Substrate Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory catalytic assemblies on high-mileage \u003cstrong\u003eGMT400\u003c\/strong\u003e platforms commonly suffer from ceramic core sintering, hydrocarbon washcoat fouling, and structural substrate collapse caused by decades of thermal cycling and rich-burn fuel transients. When the original washcoat breaks down, exhaust backpressure increases significantly against the cylinder head exhaust ports, driving up exhaust gas temperatures (EGTs), degrading valve sealing over time, and triggering persistent P0420\/P0430 diagnostic trouble codes from upstream and downstream oxygen sensors.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis replacement assembly utilizes a high-efficiency ceramic honeycomb substrate treated with an engineered precious metal washcoat to re-establish optimal chemical conversion efficiency for HC, CO, and NOx pollutants. The outer housing is constructed from corrosion-resistant 409-grade stainless steel to resist road brine and rust through. Featuring precision-formed inlet and outlet flanges, integrated O2 sensor bungs, and mandrel-bent downpipe routing, this unit bolts directly into the factory exhaust hangers without requiring cutting, sleeve clamping, or custom TIG fabrication.\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;\"\u003e1996-2000 Chevrolet Tahoe\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\u003eVortec 5700 L31\u003c\/strong\u003e \/ \u003cstrong\u003eGMT400\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;\"\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;\"\u003e\n\u003cstrong\u003e645328\u003c\/strong\u003e, \u003cstrong\u003e50239\u003c\/strong\u003e, \u003cstrong\u003e50410\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\u003e1996 Chevrolet Tahoe 5.7L V8 (1500 Series)\u003c\/li\u003e\n  \u003cli\u003e1997 Chevrolet Tahoe 5.7L V8 (1500 Series)\u003c\/li\u003e\n  \u003cli\u003e1998 Chevrolet Tahoe 5.7L V8 (1500 Series)\u003c\/li\u003e\n  \u003cli\u003e1999 Chevrolet Tahoe 5.7L V8 (1500 Series)\u003c\/li\u003e\n  \u003cli\u003e2000 Chevrolet Tahoe 5.7L V8 (1500 Series Classic)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the GMT400 Tahoe?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1996-2000 Chevrolet Tahoe equipped with the \u003cstrong\u003eVortec 5700 L31\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eIs this catalytic converter legal in all 50 states?\u003c\/h4\u003e\n\u003cp\u003eThis unit is EPA-compliant (46-state legal) but cannot be shipped to or installed on vehicles registered in California, New York, Colorado, or Maine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the high-exhaust-temperature stress loads of heavy towing and off-road driving, this heavy-duty converter maintains proper exhaust backpressure and sensor feedback to protect your transmission shift mapping and low-end hauling torque.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67537759502584,"sku":"DS-EZVL5D29Y","price":215.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-chevrolet-tahoe-1996-2000-5-7l-1.jpg?v=1790617075","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-chevrolet-tahoe-1996-2000-5-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}