{"product_id":"catalytic-converter-for-chevrolet-blazer-1996-1999-4-3l","title":"Catalytic Converter for Chevrolet Blazer (1996-1999) 4.3L","description":"\u003ch2\u003eDirect-Fit Replacement Catalytic Converter for 1996-1999 Chevrolet Blazer\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Restores exhaust flow velocity and Federal EPA OBD-II emissions compliance on clogged, failing, or deteriorated factory exhaust systems.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Blazer Catalytic Substrate Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory ceramic matrices on the GMT330 platform frequently suffer from thermal shock and internal substrate sintering. When the L35 Vortec 4300 engine experiences fuel delivery anomalies—such as common central sequential fuel injection poppet leaks or secondary ignition misfires—unburnt hydrocarbons flood the exhaust stream. This causes excessive core temperatures that melt or fracture the stock ceramic monolith, resulting in high exhaust backpressure, restricted exhaust scavenging, loss of low-end torque, and catalyst efficiency diagnostic trouble codes (DTC P0420).\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed with a heavy-gauge 409 stainless steel outer shell, this direct-fit catalytic converter resists high-heat oxidation and road salt corrosion. Computerized mandrel-bent tubing maintains uniform cross-sectional diameter to minimize turbulent flow and reduce parasitic pumping losses. Inside, an optimized ceramic honeycomb substrate with an EPA-grade precious metal washcoat provides efficient catalytic reduction of NOx, CO, and HC emissions. Precision-welded, OE-spec flanges and integrated hanger brackets bolt directly to factory locations without cutting or custom fabrication.\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 Chevrolet Blazer\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;\"\u003e4.3L Vortec 4300 (L35) \/ GMT330 (S-10 Platform)\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 Chevrolet Blazer 4.3L V6 (Federal Emissions)\u003c\/li\u003e\n  \u003cli\u003e1997 Chevrolet Blazer 4.3L V6 (Federal Emissions)\u003c\/li\u003e\n  \u003cli\u003e1998 Chevrolet Blazer 4.3L V6 (Federal Emissions)\u003c\/li\u003e\n  \u003cli\u003e1999 Chevrolet Blazer 4.3L V6 (Federal Emissions)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Chevrolet Durability Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to withstand rigorous truck duty cycles and continuous thermal stress under towing conditions, ensuring long-term structural integrity and zero exhaust leaks.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50464294732024,"sku":"DS-EYHJR5PO4","price":134.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-chevrolet-blazer-1996-1999-4-3l-1.jpg?v=1788878961","url":"https:\/\/performancechiptuning.com\/es\/products\/catalytic-converter-for-chevrolet-blazer-1996-1999-4-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}