{"product_id":"cast-t4-turbo-exhaust-manifold-for-chevrolet-silverado-1500-1999-2013-4-8l-5-3l-6-0l-6-2l","title":"Cast T4 Turbo Exhaust Manifold for Chevrolet Silverado 1500 (1999-2013) 4.8L 5.3L 6.0L 6.2L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eCast T4 Turbo Exhaust Manifold for 1999-2013 Chevrolet Silverado (GMT800 \/ GMT900)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Cast T4 Turbo Exhaust Manifold replaces the restrictive passenger-side factory manifold on 1999-2013 Chevrolet Silverado trucks to mount a T4 turbocharger high in the engine bay for forced-induction performance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chevrolet Silverado Exhaust Limitations\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust manifolds on \u003cstrong\u003eGMT800\u003c\/strong\u003e and \u003cstrong\u003eGMT900\u003c\/strong\u003e trucks are strictly configured for atmospheric discharge and cannot support turbocharger integration. Meanwhile, thin-wall fabricated tubular headers are notorious for fatigue failure: sustained high exhaust gas temperatures (EGTs) and intense thermal expansion cycles induce stress cracking at welded junctions. These thermal stress fractures cause critical boost leaks, warp mounting surfaces, and ruin exhaust drive pressure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eConstructed from thick-wall ductile cast iron, this manifold eliminates weld failure points and resists thermal cycle fatigue under sustained boost pressure. The integrated \u003cstrong\u003eT4 flange\u003c\/strong\u003e is precision-machined flat and true to guarantee an airtight seal against the turbine housing without corrective shimming. Designed with a 2.5-inch V-band crossover port, it integrates smoothly with hot-side crossover piping to route driver-bank flow efficiently, optimizing exhaust gas velocity into the turbine wheel on \u003cstrong\u003eGen III\/IV LS\u003c\/strong\u003e engines.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x Passenger-Side Cast T4 Turbo Exhaust Manifold\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: solid font-size: min-width:\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;\"\u003e1999-2013 Chevrolet Silverado\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;\"\u003eVortec 4.8L, 5.3L, 6.0L, 6.2L (Gen III\/IV LS) \/ GMT800, GMT900\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;\"\u003e255–403 hp \/ 285–417 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;\"\u003eN\/A\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\u003e1999-2013 Chevrolet Silverado 1500 (4.8L, 5.3L, 6.0L, 6.2L LS-based Vortec V8)\u003c\/li\u003e\n  \u003cli\u003eVortec LS engine swap configurations utilizing factory truck cylinder heads\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 GMT800 and GMT900 Silverado?\u003c\/h4\u003e\n\u003cp\u003eYes, this manifold is a direct bolt-on for 1999-2013 Chevrolet Silverado trucks equipped with \u003cstrong\u003eVortec V8\u003c\/strong\u003e engines; it does not fit 2014+ 5.3L or 6.2L EcoTec3 models.\u003c\/p\u003e\n\n\u003ch4\u003eAre mounting hardware and manifold gaskets included?\u003c\/h4\u003e\n\u003cp\u003eNo, mounting hardware and gaskets are not included and must be sourced separately or reused from existing factory-grade hardware.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chevrolet Durability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to endure heavy hauling duty cycles and demanding boost levels, this solid cast-iron manifold delivers the structural integrity required to eliminate thermal warping and exhaust leaks under load.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67612780790008,"sku":"DS-E21BMUMTP","price":194.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/cast-t4-turbo-exhaust-manifold-for-chevrolet-silverado-1500-1999-2013-4-8l-5-3l-6-0l-6-2l-1.jpg?v=1791607320","url":"https:\/\/performancechiptuning.com\/fr\/products\/cast-t4-turbo-exhaust-manifold-for-chevrolet-silverado-1500-1999-2013-4-8l-5-3l-6-0l-6-2l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}