{"product_id":"speed-engineering-silverado-sierra-1-7-8-longtube-headers-2014-2019","title":"Speed Engineering Silverado \u0026 Sierra 1 7\/8\" Longtube Headers | 2014-2019","description":"\u003csection data-speedzone-option-guide=\"2026-10-04\"\u003e\u003ch3\u003eChoose your configuration\u003c\/h3\u003e\n\u003cp\u003eSelect an entry in each required dropdown. Choose None where an optional upgrade is not wanted. Extra charges are shown beside paid choices and are added at checkout. Selections apply to each main product ordered.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLT Manifold Gaskets:\u003c\/strong\u003e \"Recommend MLS Gaskets\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Engineering Spark Plug Wires:\u003c\/strong\u003e \"Same as Factory Length with Angled Boots\"\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003cp\u003e\u003cstrong\u003eSilverado \u0026amp; Sierra 1 7\/8\" Longtube Headers | 2014-2019\u003c\/strong\u003e — Manufacturer part number: 25-1037.\u003c\/p\u003e\u003ch2\u003e\n\u003cspan style=\"color: #ff0000;\"\u003e(\u003c\/span\u003e\u003cspan style=\"color: #ff0000;\"\u003eIN STOCK\u003c\/span\u003e\u003cspan style=\"color: #ff0000;\"\u003e)\u003cbr\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eSpeed Engineering Silverado \u0026amp; Sierra longtube headers are made out of 304 stainless steel and offer great quality, performance, and affordability. Our Silverado \u0026amp; Sierra longtube headers are mandrel bent, tig welded, and feature natural stainless steel construction. All of our Silverado \u0026amp; Sierra longtube headers have been dyno proven. We stand behind our Silverado \u0026amp; Sierra longtube headers in saying you will not find a better fitting, quality built, budget header for your vehicle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures include:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMandrel Bent Tubing\u003c\/li\u003e\n\u003cli\u003eMerge Spikes\u003c\/li\u003e\n\u003cli\u003eFull 1 7\/8 \" Primaries\u003c\/li\u003e\n\u003cli\u003e3\" Collector\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eLongtube Header Design\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eSilverado \/ Sierra \/ SUV LT Headers\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003eGains over 25+ rwhp\u003c\/li\u003e\n\u003cli\u003eV8 Engines Only\u003c\/li\u003e\n\u003cli\u003e5.3L, 6.2L Engines\u003c\/li\u003e\n\u003cli\u003eCNC Machined Flanges\u003c\/li\u003e\n\u003cli\u003eNatural Stainless Steel\u003c\/li\u003e\n\u003cli\u003eStandard Graphite Manifold Gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2014-2019 (Classic) \u003cem\u003eChevrolet  SIlverado Truck\u003c\/em\u003e (2wd\/4wd)\u003c\/li\u003e\n\u003cli\u003e2014-2019 (Classic) \u003cem\u003eGMC Sierra Truck \u0026amp;  Yukon SUV\u003c\/em\u003e (2wd\/4wd)\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e2015-2020 Cadillac Escalade (2wd\/4wd)\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e2015-2020 Tahoe (2wd\/4wd)\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e2015-2020 Yukon \u0026amp; Yukon Denali (2wd\/4wd)\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote: Y-Pipe will work on trucks \u0026amp; suv's with 6 Speed \u0026amp; 8 Speed Automatic transmissions.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote: Exhaust products only work on earlier 2019 (Classic) models and not the newer body style 2019 GM vehicles. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote: GM 2500\/3500 models with 6.0L applications will require our \u003ca href=\"https:\/\/speed-engineering.com\/collections\/2007-2013-silverado-sierra-suv-headers-exhaust\" title=\"07-13 GM Truck Exhaust\"\u003e\u003cspan style=\"color: #2b00ff;\"\u003e\u003cspan style=\"color: #2b00ff;\"\u003e07-13 GM truck\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e exhaust products. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cspan style=\"color: #ff2a00;\"\u003e(Warning)\u003c\/span\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003eThis is a RACE ONLY product manufactured and sold for installation on vehicles to be used solely for competition purposes. Once this part is installed, the vehicle may never be used, or registered or licensed for use, on a public road or highway. If you install this part on your vehicle and use the vehicle on a public road or highway, you will violate the Clean Air Act 203(a)(3), 42 U.S.C, 7522(a)(3) and may be subject to personal civil or criminal liability.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0577\/3885\/4576\/files\/Sema_Garage_3.jpg?v=1752617178\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003ch3\u003eFitment and ordering\u003c\/h3\u003e\u003cp\u003eConfirm the vehicle, engine, dimensions and application restrictions listed above before ordering. Speed Engineering parts are designed to work with Speed Engineering components; mixing brands may require modifications.\u003c\/p\u003e\u003ch3\u003eAvailable upgrades and related Speed Engineering parts\u003c\/h3\u003e\u003cp\u003eUse the selectors above to include upgrades with this product. The links below are for reference or separate purchases; do not also buy an upgrade separately if you have already selected it above. Check quantities, included parts, and fitment.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/products\/ls-exhaust-manifold-gaskets-bolts-gm-2014-lt1-lt4-engines-m2\"\u003eLT Multi-Layer Steel Gaskets\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/products\/lt-zinc-exhaust-manifold-bolts-header-bolts\"\u003eStandard Zinc Bolts - LT\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/products\/ls-spark-plug-wires-car-ls1-ls2-ls3-ls6-ls7-ls9-engines-m2\"\u003e\"RED\" 10\" Total Length Wires\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/products\/ls-lt-spark-plug-wires-truck-suv-1999-18-4-8l-5-3l-6-0l-6-2l-engines-m2\"\u003e\"RED\" 12\" Total Length Wires\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/products\/ls-spark-plug-wires-car-truck-suv-10-length-4-8l-5-3l-6-0l-6-2l-engines-black\"\u003e\"BLACK\" 10\" Total Length Wires\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/products\/ls-spark-plug-wires-truck-suv-12-length-4-8l-5-3l-6-0l-6-2l-engines-black\"\u003e\"BLACK\" 12\" Total Length Wires\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/products\/speed-engineering-silverado-sierra-cold-air-intake-2014-2019-5-3l-6-2l-engines\"\u003eSpeed Engineering Cold Air Intake\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-ca\/products\/spark-plug-wire-fire-sleeves-heat-shield-cover\"\u003eSpark Plug Wire Fire Sleeves\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003csmall\u003eManufacturer specifications and availability checked October 4, 2026. Availability refers to the manufacturer and can change; it does not indicate stock held at Speedzone.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp class=\"speed-engineering-return-notice\"\u003e\u003csmall style=\"font-size: 0.85em; line-height: 1.5;\"\u003e\u003cstrong\u003eReturns:\u003c\/strong\u003e All Speed Engineering product sales are final. No returns are accepted on Speed Engineering products. Please verify fitment before ordering. See our \u003ca href=\"\/en-ca\/policies\/refund-policy\"\u003eReturn Policy\u003c\/a\u003e for additional terms. This does not limit any consumer rights that cannot be waived under applicable law.\u003c\/small\u003e\u003c\/p\u003e","brand":"Speed Engineering","offers":[{"title":"Default Title","offer_id":46249162571861,"sku":"25-1037","price":468.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/5040\/files\/25-1037Silverado_SierraLongtubeHeaders2014-2019_bebfb4ac-48b2-4ae7-b3fb-b80815f03547.jpg?v=1790789961","url":"https:\/\/speedzone-web.com\/en-ca\/products\/speed-engineering-silverado-sierra-1-7-8-longtube-headers-2014-2019","provider":"Speedzone Performance LLC","version":"1.0","type":"link"}