{"product_id":"catalytic-converter-for-chevrolet-s-10-1996-1999-2-2l-rear","title":"Catalytic Converter for Chevrolet S-10 (1996-1999) 2.2L Rear","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Rear Catalytic Converter for 1996-1999 Chevrolet S-10 (GMT325)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit rear catalytic converter replaces the depleted or restricted factory emissions brick on the 1996-1999 Chevrolet S-10 to clear P0420\/P0430 DTCs, relieve exhaust backpressure, and restore engine volumetric efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet S-10 Substrate Degradation\u003c\/h3\u003e\n\u003cp\u003eFactory catalytic units on the \u003cstrong\u003eGMT325\u003c\/strong\u003e platform endure severe thermal cycling and prolonged carbon blow-by from the high-mileage \u003cstrong\u003eLN2\u003c\/strong\u003e (Vortec 2200) engine. Over time, the original ceramic honeycomb experiences washcoat sintering and structural thermal fracture. This degradation triggers persistent downstream O2 sensor fault codes (P0420), while broken internal substrate creates an exhaust restriction that strangles mid-range torque, induces poor idle stability, and causes excessive exhaust gas retention within the manifold.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered to exceed standard aftermarket thermal thresholds, this rear assembly utilizes a corrosion-resistant 409 stainless steel housing paired with a heavy-duty 600 CPSI cordierite ceramic substrate. The core features a precise ratio of palladium and rhodium precious metals to maximize chemical reduction of unburned hydrocarbons and carbon monoxide without constricting exhaust flow. Built with CNC mandrel-bent transition piping, precision-machined heavy-gauge connection flanges, and factory-indexed oxygen sensor bungs, it installs directly in place of OEM numbers \u003cstrong\u003e25175249\u003c\/strong\u003e and \u003cstrong\u003e25314443\u003c\/strong\u003e without requiring cutting or TIG welding.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Direct-Fit Rear Catalytic Converter\u003c\/li\u003e\n  \u003cli\u003eMounting Hardware\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;\"\u003e1996-1999 Chevrolet S-10\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;\"\u003eLN2 (2.2L OHV) \/ GMT325\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;\"\u003e118-120 hp \/ 130-140 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;\"\u003e25175249, 25314443\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\u003e1996-1999 Chevrolet S-10 2.2L L4 (Rear Position, Federal 49-State Emissions Only)\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 GMT325 S-10?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1996-1999 Chevrolet S-10 equipped with the \u003cstrong\u003eLN2\u003c\/strong\u003e 2.2L engine. \u003cstrong\u003eThis part is not legal for sale, purchase, or use on vehicles registered in California, Colorado, New York, or Maine.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eAre cutting or welding modifications required for installation?\u003c\/h4\u003e\n\u003cp\u003eNo, this unit is manufactured with direct-fit bolt-on flanges and factory-positioned O2 bungs, allowing installation using standard mechanical hand tools.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Truck Standard\u003c\/h3\u003e\n\u003cp\u003eWork-grade light trucks require rugged components capable of sustained load. This 409 stainless steel converter delivers robust structural durability, eliminating exhaust rattles while maintaining reliable backpressure control under heavy bed payloads and continuous utility driving.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67901434102008,"sku":"DS-EFGFS40XN","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-chevrolet-s-10-1996-1999-2-2l-rear-1.jpg?v=1793336323","url":"https:\/\/performancechiptuning.com\/de\/products\/catalytic-converter-for-chevrolet-s-10-1996-1999-2-2l-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}