{"product_id":"1993-1998-stainless-exhaust-header-for-93-98-toyota-supra-3-0l-non-turbo-mk4-na","title":"Stainless Exhaust Header For 1993-1998 Toyota Supra 3.0L Non-Turbo MK4 NA","description":"\u003cdiv class=\"xkv-product-description\"\u003e\n\n  \u003cp\u003e\n    This stainless steel exhaust header is designed for listed 1993–1998 Toyota Supra MK4 3.0L non-turbo applications. It is intended as an exhaust manifold \/ header replacement or upgrade-style component for compatible Supra NA exhaust setups.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Built from T304 stainless steel with mandrel-bent tubing, CNC-machined flanges, TIG-welded construction, O2 bungs, and 3\/8\" flanges as listed, this header is designed to support a secure exhaust path where compatible. Final fitment, sound, exhaust sealing, drivability, and performance results may vary depending on vehicle condition, exhaust layout, O2 sensor setup, installation quality, emissions setup, and supporting components.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eProduct Overview\u003c\/h3\u003e\n  \u003cp\u003e\n    This product is an exhaust header for compatible Toyota Supra MK4 3.0L non-turbo applications. It is not a turbo manifold, turbo downpipe, catback system, full exhaust system, or universal header kit. Please verify your exact model year, engine configuration, non-turbo fitment, flange layout, O2 sensor position, exhaust connection, and emissions requirements before purchase.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eKey Details\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Listed 1993–1998 Toyota Supra MK4 3.0L non-turbo applications\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Header \/ Exhaust Manifold Header\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T304 stainless steel as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrimary Pipe Size:\u003c\/strong\u003e 1.50\" as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOutlet \/ Collector Reference:\u003c\/strong\u003e 2.50\" \/ 2.25\" collector details as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePort Shape:\u003c\/strong\u003e Normal “O” port shape as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePort ID:\u003c\/strong\u003e 1.4\" as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eO2 Bung:\u003c\/strong\u003e 2 O2 bungs as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFlange Thickness:\u003c\/strong\u003e 3\/8\" as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Mandrel-bent tubing with TIG-welded CNC-machined flange as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Professional installation highly recommended\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInstruction:\u003c\/strong\u003e No installation instructions included\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUse Case:\u003c\/strong\u003e Off-road, racing, or closed-course use where emissions laws apply\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eFitment\u003c\/h3\u003e\n  \u003cp\u003e\n    Please use the table below to quickly confirm the main vehicle application listed for this header. Before ordering, verify your exact model year, engine configuration, non-turbo fitment, exhaust layout, O2 sensor position, and emissions setup.\n  \u003c\/p\u003e\n\n  \u003cdiv class=\"xkv-fitment-table-wrap\"\u003e\n    \u003ctable class=\"xkv-fitment-table\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eVehicle Name\u003c\/th\u003e\n          \u003cth\u003eYear\u003c\/th\u003e\n          \u003cth\u003eEngine\u003c\/th\u003e\n          \u003cth\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eToyota Supra MK4 NA\u003c\/td\u003e\n          \u003ctd\u003e1993–1998\u003c\/td\u003e\n          \u003ctd\u003e3.0L Non-Turbo\u003c\/td\u003e\n          \u003ctd\u003eVerify non-turbo fitment, flange layout, O2 sensor position, and exhaust connection before purchase\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"xkv-fitment-note\"\u003e\n    \u003cstrong\u003eFitment Note:\u003c\/strong\u003e This table is based on the fitment information currently listed for this product. This header is intended for listed Toyota Supra MK4 3.0L non-turbo applications only. It is not listed for turbo applications unless compatibility is independently verified before purchase.\n  \u003c\/div\u003e\n\n  \u003ch3\u003ePackage Includes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eExhaust header component as shown\u003c\/li\u003e\n    \u003cli\u003eO2 bung provisions as listed\u003c\/li\u003e\n    \u003cli\u003eGaskets, hardware, or additional accessories included only if shown or listed\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\n    Please review the product photos and listing details before installation. Confirm all included components, flanges, gaskets, fasteners, and connection requirements against the received package before beginning installation.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eProfessional installation is highly recommended.\u003c\/li\u003e\n    \u003cli\u003eNo installation instructions are included.\u003c\/li\u003e\n    \u003cli\u003eTest fit the header before final tightening.\u003c\/li\u003e\n    \u003cli\u003eVerify cylinder head flange alignment, gasket seating, O2 sensor position, downstream exhaust connection, and engine bay clearance before installation.\u003c\/li\u003e\n    \u003cli\u003eCheck clearance around the engine bay, steering components, subframe, wiring, heat shields, and surrounding exhaust components.\u003c\/li\u003e\n    \u003cli\u003eOld, rusted, or seized factory hardware may increase installation difficulty.\u003c\/li\u003e\n    \u003cli\u003eModified exhaust systems, engine swaps, previous repairs, or non-factory configurations may require additional adjustment or fabrication.\u003c\/li\u003e\n    \u003cli\u003eInspect all exhaust connections for leaks after installation and recheck fasteners after initial heat cycles where appropriate.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eBefore You Buy\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eThis product is intended for listed 1993–1998 Toyota Supra MK4 3.0L non-turbo applications only.\u003c\/li\u003e\n    \u003cli\u003eThis is an exhaust header, not a turbo manifold, turbo downpipe, catback system, full exhaust system, or universal header kit.\u003c\/li\u003e\n    \u003cli\u003ePlease verify your exact model year, engine configuration, non-turbo fitment, flange layout, O2 sensor position, exhaust connection, and emissions setup before purchase.\u003c\/li\u003e\n    \u003cli\u003eThis product is not listed for turbo applications unless compatibility is independently verified.\u003c\/li\u003e\n    \u003cli\u003eThis product may alter the factory exhaust or emissions-related configuration depending on the vehicle setup.\u003c\/li\u003e\n    \u003cli\u003eThis product is intended for off-road, racing, or closed-course use where emissions laws apply.\u003c\/li\u003e\n    \u003cli\u003eThis product is not represented as street legal, emissions-compliant, CARB-compliant, or legal for public road use unless explicitly stated.\u003c\/li\u003e\n    \u003cli\u003ePerformance gains, sound changes, exhaust flow changes, fitment, and drivability results are not guaranteed and may vary by setup.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n  .xkv-product-description {\n    font-family: Arial, sans-serif;\n    line-height: 1.5;\n    color: #333;\n  }\n\n  .xkv-product-description h3 {\n    margin-top: 28px;\n    margin-bottom: 12px;\n    color: #062E94;\n    font-size: 20px;\n    font-weight: 700;\n  }\n\n  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