{"product_id":"catalytic-converter-for-chevrolet-tahoe-2000-2006-4-8l-5-3l-front","title":"Catalytic Converter for Chevrolet Tahoe (2000-2006) 4.8L 5.3L Front","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Front Catalytic Converter Set for 2000-2006 Chevrolet Tahoe (GMT800)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The front direct-fit catalytic converter assembly replaces degraded factory emissions equipment on 2000-2006 Chevrolet Tahoe models to restore proper exhaust flow, clear P0420\/P0430 DTC codes, and normalize engine backpressure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Tahoe Catalyst Degradation\u003c\/h3\u003e\n\u003cp\u003eOn high-mileage \u003cstrong\u003eGMT800\u003c\/strong\u003e platforms powered by \u003cstrong\u003eVortec 4800 (LR4)\u003c\/strong\u003e and \u003cstrong\u003eVortec 5300 (LM7)\u003c\/strong\u003e engines, original factory converters frequently succumb to thermal fatigue, substrate burnout, or oil-ash fouling from PCV vapor. Over time, internal ceramic washcoats sinter and internal honeycomb channels fracture or melt. This restricts exhaust scavenging, elevates exhaust gas temperatures (EGT), chokes cylinder evacuation, and triggers persistent downstream catalytic efficiency check engine lights.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis replacement front assembly features high-grade stainless steel tubing coupled with heavy-duty ceramic honeycomb monolith substrates washcoated with precious catalytic metals to ensure efficient hydrocarbon, CO, and NOx reduction. Precision mandrel bending maintains uniform inner diameter flow profiles, while heavy-gauge OE-style mating flanges and pre-welded oxygen sensor ports ensure direct bolt-in fitment without torching or custom fabrication. The dual-bank design matches factory exhaust dynamics to maintain critical low-end torque curves under sustained loads.\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;\"\u003e2000-2006 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;\"\u003e4.8L LR4 \u0026amp; 5.3L LM7 \/ GMT800\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;\"\u003e275-295 hp \/ 290-335 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;\"\u003e9063, 20370, 51097, 2010019, 50511, 19010, 9083, 50366, 93419, 079-5150\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\u003e2000-2006 Chevrolet Tahoe 4.8L V8 (GMT800)\u003c\/li\u003e\n  \u003cli\u003e2000-2006 Chevrolet Tahoe 5.3L V8 (GMT800)\u003c\/li\u003e\n  \u003cli\u003eNote: Front placement only; does not fit 6.0L V8 applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the GMT800 Tahoe?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2000-2006 Chevrolet Tahoe equipped with the \u003cstrong\u003eLR4\u003c\/strong\u003e or \u003cstrong\u003eLM7\u003c\/strong\u003e Vortec V8 engines.\u003c\/p\u003e\n\n\u003ch4\u003eIs this catalytic converter legal in California or New York?\u003c\/h4\u003e\n\u003cp\u003eThis is an EPA 48-state legal replacement and cannot be legally sold or shipped to California, Colorado, Maine, or New York registered vehicles.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Heavy-Duty Caliber\u003c\/h3\u003e\n\u003cp\u003eFull-size GM utility trucks demand uncompromised exhaust integrity to withstand prolonged thermal stress during heavy-load towing and backcountry hauling. This stainless replacement assembly guarantees structural reliability and exhaust sealing against factory exhaust manifolds under peak working temperatures.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67538072207608,"sku":"DS-EZU1N0F3W","price":202.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-chevrolet-tahoe-2000-2006-4-8l-5-3l-front-1.jpg?v=1790622077","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-chevrolet-tahoe-2000-2006-4-8l-5-3l-front","provider":"Performance Chip Tuning","version":"1.0","type":"link"}