{"product_id":"catalytic-converter-for-gmc-jimmy-1996-1999-4-3l","title":"Catalytic Converter for GMC Jimmy (1996-1999) 4.3L","description":"\u003ch2\u003eDirect-Fit Replacement Catalytic Converter for 1996-1999 GMC Jimmy\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces degraded or clogged factory catalytic converters to restore proper exhaust scavenging, eliminate catalyst-efficiency DTCs, and maintain Federal EPA OBD-II emissions compliance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Jimmy Catalytic Breakdown and Flow Restriction\u003c\/h3\u003e\n\u003cp\u003eOver extended operating cycles, factory catalytic converters on the 4.3L V6 suffer from thermal fatigue, washcoat sintering, and substrate clogging due to oil blow-by and unburned hydrocarbons. This breakdown leads to elevated exhaust backpressure, choked cylinder evacuation, reduced low-end torque, and recurring P0420\/P0430 diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed with a heavy-gauge 409 stainless steel outer shell and computerized mandrel-bent tubing, this direct-fit unit ensures optimal laminar exhaust velocity. The durable ceramic honeycomb substrate is loaded with high-grade precious metal washcoats to ensure efficient chemical conversion of NOx, CO, and HC, while OE-spec thick-machined flanges allow direct bolt-on installation to existing factory exhaust mounting locations.\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;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e1996-1999 GMC Jimmy\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eVortec 4300 (L35) \/ GMT330 (S-Series)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e190 hp \/ 250 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e14520, 14515, 079-5109, 1AME642514\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1996-1999 GMC Jimmy 4.3L V6 (Base, SLS, SLE, SLT, Envoy)\u003c\/li\u003e\n  \u003cli\u003eFitment Note: Rear exhaust pipe converter location; 2WD \u0026amp; 4WD models\u003c\/li\u003e\n  \u003cli\u003eEmissions Compliance: EPA Federal OBD-II compliant (Not legal for sale or use in CA, ME, or NY registered vehicles)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe GMC S-Series Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered for high-vibration truck applications, this converter features robust perimeter welds and reinforced hangers designed to handle heavy-duty hauling, off-road articulation, and sustained towing heat cycles without structural separation.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50464303055096,"sku":"DS-ERTJGK8JY","price":134.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-gmc-jimmy-1996-1999-4-3l-1.jpg?v=1788878993","url":"https:\/\/performancechiptuning.com\/products\/catalytic-converter-for-gmc-jimmy-1996-1999-4-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}