{"product_id":"dougs-mid-length-header-64-77-gm-f-g-a-body-396-502-bbc-1-3-4-primary-3-collector-304-stainless-d306-ss","title":"Doug's Headers Doug's Mid Length Header 64-77 GM F, G, \u0026 A Body 396-502 BBC 1 3\/4\" Primary 3\" Collector 304 Stainless D306-SS","description":"\u003cp\u003eMid-Length Headers, often called Clipsters, are engineered to provide superior performance gains over Manifold Replacements or Block Hugger style headers. These headers enhance your vehicles's horsepower and torque while preserving ground clearance for cars with a lowered stance and trucks where long tube headers may hang to low.\u003c\/p\u003e\u003cp\u003eThis fitment is tailored for popular aftermarket engine swap kits. Doug's engine swap headers were developed to solve common fitment issues in tight spaces, making your swap process smoother. No more guesswork or modifications needed - just straightforward installations that save you time and frustration.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNatural stainless-steel finish offers superior resistance to rust and corrosion\u003c\/li\u003e\n\u003cli\u003e3\/8\" thick 304 stainless machine flanges to prevent warping\u003c\/li\u003e\n\u003cli\u003eCNC 304 stainless mandrel bent tubes for an accurate fit and improved flow\u003c\/li\u003e\n\u003cli\u003ePrecision formed long transition collectors and long tube design reduce backpressure and increase higher RPM horsepower\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector Attachment:\u003c\/strong\u003e 3-Bolt Flange\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector Diameter:\u003c\/strong\u003e 3.0 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollector Port Diameter:\u003c\/strong\u003e 3.0 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder Head Port Shape:\u003c\/strong\u003e SAP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Mid Length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Port:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmissionFullDES:\u003c\/strong\u003e 3 - This Product is LEGAL for Closed Course Competition use or Pre-Emissions Controlled Vehicles ONLY. It is Not Legal for use on any Emissions Controlled Vehicle for Street or Off Highway use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e 304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlange Thickness:\u003c\/strong\u003e 0.375 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGasket Or Seal Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGaskets Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader Material:\u003c\/strong\u003e 304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader Style:\u003c\/strong\u003e Mid Length\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hardware Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOxygen Sensor Port:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Shape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Tube Outside Diameter:\u003c\/strong\u003e 1.75 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Tubing Diameter:\u003c\/strong\u003e 1.75 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheen Level:\u003c\/strong\u003e Satin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Wall Thickness:\u003c\/strong\u003e 16 ga.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Doug's Headers","offers":[{"title":"Default Title","offer_id":45520499015815,"sku":"DOUD306-SS","price":1354.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/4008\/1543\/files\/D306-SS.jpg?v=1788268468","url":"https:\/\/checkout.northernperformance.ca\/products\/dougs-mid-length-header-64-77-gm-f-g-a-body-396-502-bbc-1-3-4-primary-3-collector-304-stainless-d306-ss","provider":"Northern Performance","version":"1.0","type":"link"}