{"product_id":"stainless-steel-exhaust-headers-for-2009-2013-nissan-370z-2008-2013-infiniti-g37-3-7l-v6-vq37vhr-350z-3-5l-vq35de-hr","title":"2009-2013 Nissan 370Z 2008-2013 Infiniti G37 3.7L V6 VQ37VHR \u0026 350Z 3.5L VQ35DE\/HR Stainless Steel Exhaust Headers","description":"\u003cdiv class=\"xkv-product-description\"\u003e\n\n  \u003cp\u003e\n    This stainless steel exhaust header set is designed for page-listed Nissan and Infiniti VQ applications, including 2007–2008 Nissan 350Z 3.5L HR engines, 2009–2013 Nissan 370Z 3.7L models, and 2008–2013 Infiniti G37 2-door \/ 4-door 3.7L models.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Built from T304 stainless steel with CNC-machined flanges, TIG\/MIG welded construction, mandrel-bent tubing, 2.0\" inlet, 2.5\" outlet, and primary runner dimensions as listed, this header set 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, engine code, 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 set for compatible Nissan 350Z \/ 370Z and Infiniti G37 VQ applications. It is not a catback exhaust system, downpipe, test pipe, turbo manifold, full exhaust system, or universal header kit. Please verify your exact model year, chassis, engine code, flange layout, O2 sensor position, downstream 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 Page-listed Nissan 350Z \/ 370Z and Infiniti G37 VQ applications\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Header Set \/ Exhaust Manifold Headers\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\u003eInlet:\u003c\/strong\u003e 2.0\" \/ 50.8mm as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOutlet:\u003c\/strong\u003e 2.5\" \/ 63.5mm as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrimary Runner Reference:\u003c\/strong\u003e 1-3\/4\" width x 1-1\/4\" height primary runners as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFlanges:\u003c\/strong\u003e CNC-machined flanges with extra supporting tabs as listed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e TIG\/MIG welded construction 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 Installation instruction is not included as listed\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 applications currently listed for this header set. Before ordering, verify your exact model year, chassis, engine code, O2 sensor layout, flange connection, downstream exhaust layout, 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\u003eNissan 350Z\u003c\/td\u003e\n          \u003ctd\u003e2007–2008\u003c\/td\u003e\n          \u003ctd\u003e3.5L V6 HR\u003c\/td\u003e\n          \u003ctd\u003eVerify VQ35HR engine, flange layout, O2 sensor position, and exhaust connection before purchase\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eNissan 370Z\u003c\/td\u003e\n          \u003ctd\u003e2009–2013\u003c\/td\u003e\n          \u003ctd\u003e3.7L V6\u003c\/td\u003e\n          \u003ctd\u003ePage-listed all models; verify exact chassis, engine setup, and exhaust configuration\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eInfiniti G37 2Dr \/ 4Dr\u003c\/td\u003e\n          \u003ctd\u003e2008–2013\u003c\/td\u003e\n          \u003ctd\u003e3.7L V6\u003c\/td\u003e\n          \u003ctd\u003eVerify coupe \/ sedan configuration, flange layout, O2 sensor position, and exhaust connection\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. The product title references VQ35DE\/HR, but the page-listed 350Z fitment specifically states 2007–2008 Nissan 350Z 3.5L V6 HR engines. Please verify your exact engine code, chassis, O2 sensor position, flange layout, downstream exhaust connection, and emissions setup before purchase.\n  \u003c\/div\u003e\n\n  \u003ch3\u003ePackage Includes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eExhaust header components as shown\u003c\/li\u003e\n    \u003cli\u003eCNC-machined flange sections as listed\u003c\/li\u003e\n    \u003cli\u003eSupporting tabs \/ welded construction as listed\u003c\/li\u003e\n    \u003cli\u003eGaskets, hardware, bolts, 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 headers, 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\u003eInstallation instruction is not included as listed.\u003c\/li\u003e\n    \u003cli\u003eTest fit both header sides 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 steering components, subframe, starter area, transmission, wiring, heat shields, sensors, 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, previous repairs, engine swaps, or non-factory configurations may require additional adjustment or compatible components.\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 page-listed Nissan 350Z \/ 370Z and Infiniti G37 VQ applications only.\u003c\/li\u003e\n    \u003cli\u003eThis is an exhaust header set, not a catback exhaust system, downpipe, test pipe, turbo manifold, full exhaust system, or universal header kit.\u003c\/li\u003e\n    \u003cli\u003ePlease verify your exact model year, chassis, engine code, flange layout, O2 sensor position, downstream exhaust connection, and emissions setup before purchase.\u003c\/li\u003e\n    \u003cli\u003eThe page-listed Nissan 350Z application states 2007–2008 3.5L V6 HR engines; please verify compatibility before assuming fitment for other VQ35 variants.\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, clearance, 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  .xkv-product-description p {\n    margin-bottom: 14px;\n  }\n\n  .xkv-product-description ul {\n    margin: 0 0 18px 20px;\n    padding: 0;\n  }\n\n  .xkv-product-description li {\n    margin-bottom: 8px;\n  }\n\n  .xkv-fitment-table-wrap {\n    width: 100%;\n    overflow-x: auto;\n    margin: 18px 0 20px;\n    border: 1px solid #d9dde5;\n    border-radius: 8px;\n    box-shadow: 0 2px 10px rgba(0,0,0,0.04);\n  }\n\n  .xkv-fitment-table {\n    width: 100%;\n    min-width: 760px;\n    border-collapse: collapse;\n    background: #fff;\n  }\n\n  .xkv-fitment-table th,\n  .xkv-fitment-table td {\n    border-right: 1px solid #e0e0e0;\n    border-top: 1px solid #e5e5e5;\n    padding: 13px 14px;\n    font-size: 15px;\n    line-height: 1.45;\n    text-align: left;\n    color: #444;\n  }\n\n  .xkv-fitment-table th:last-child,\n  .xkv-fitment-table td:last-child {\n    border-right: none;\n  }\n\n  .xkv-fitment-table thead th {\n    background-color: #2f4053;\n    color: #ffffff;\n    font-weight: 700;\n    text-transform: uppercase;\n    border-top: none;\n    border-right: 1px solid #1f2b39;\n  }\n\n  .xkv-fitment-table thead th:last-child {\n    border-right: none;\n  }\n\n  .xkv-fitment-table tbody tr:nth-child(even) {\n    background-color: #fafafa;\n  }\n\n  .xkv-fitment-table tbody tr:hover {\n    background-color: #f5f8fc;\n  }\n\n  .xkv-fitment-note {\n    margin: 14px 0 24px;\n    padding: 14px 16px;\n    background-color: #f8fafd;\n    border-left: 4px solid #062E94;\n    color: #333;\n    font-size: 14px;\n    line-height: 1.65;\n  }\n\n  @media (max-width: 768px) {\n    .xkv-product-description h3 {\n      font-size: 18px;\n    }\n\n    .xkv-product-description p,\n    .xkv-product-description li,\n    .xkv-fitment-table th,\n    .xkv-fitment-table td {\n      font-size: 14px;\n    }\n\n    .xkv-fitment-table th,\n    .xkv-fitment-table td {\n      padding: 11px 12px;\n    }\n\n    .xkv-fitment-table {\n      min-width: 720px;\n    }\n\n    .xkv-fitment-note {\n      font-size: 13px;\n      line-height: 1.6;\n    }\n  }\n\n  @media (max-width: 480px) {\n    .xkv-product-description h3 {\n      font-size: 17px;\n    }\n\n    .xkv-fitment-table {\n      min-width: 700px;\n    }\n  }\n\u003c\/style\u003e","brand":"XKVracing","offers":[{"title":"Default Title","offer_id":47887659466922,"sku":"XKV11113","price":136.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/9506\/3722\/files\/0_0047_MT001064-EH28943X-11113SAS_Main_image_2.webp?v=1769826724","url":"https:\/\/xkvracing.com\/products\/stainless-steel-exhaust-headers-for-2009-2013-nissan-370z-2008-2013-infiniti-g37-3-7l-v6-vq37vhr-350z-3-5l-vq35de-hr","provider":"XKVracing","version":"1.0","type":"link"}