{"product_id":"bull-boost-performance-b-series-1018-steel-exhaust-header-flange","title":"Bull Boost Performance B-Series 1018 Steel Exhaust Header Flange","description":"\u003ch3\u003eBull Boost Performance B-Series 1018 Steel Exhaust Header Flange\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 729859401904\u003c\/p\u003e\n\u003cp\u003eBuild a stronger, more reliable exhaust manifold with the \u003cstrong\u003eBull Boost Performance B-Series 1018 Steel Exhaust Header Flange\u003c\/strong\u003e. Designed for fabricators, racers, and performance enthusiasts, this CNC-machined flange is manufactured from premium \u003cstrong\u003e1018 mild steel\u003c\/strong\u003e and engineered to withstand the extreme temperatures and stress associated with high-performance street and race applications.\u003c\/p\u003e\n\u003cp\u003eFeaturing a precision-machined \u003cstrong\u003e3D port design\u003c\/strong\u003e, this flange provides a smooth transition between the cylinder head and exhaust runners, helping optimize exhaust flow while simplifying fabrication. The heavy-duty \u003cstrong\u003e1\/2-inch thick construction\u003c\/strong\u003e minimizes flange warping and maintains consistent gasket sealing under high heat and boost pressures.\u003c\/p\u003e\n\u003cp\u003eWhether you're building a naturally aspirated race header or a high-horsepower turbo manifold, this flange delivers the durability and precision required for professional-level fabrication.\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManufactured by \u003cstrong\u003eBull Boost Performance\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCNC machined in-house\u003c\/li\u003e\n\u003cli\u003ePremium 1018 steel construction\u003c\/li\u003e\n\u003cli\u003ePrecision 3D port design\u003c\/li\u003e\n\u003cli\u003eHeavy-duty 1\/2\" thick flange\u003c\/li\u003e\n\u003cli\u003eExcellent TIG and MIG weldability\u003c\/li\u003e\n\u003cli\u003eHigh-temperature resistant design\u003c\/li\u003e\n\u003cli\u003eImproved gasket sealing surface\u003c\/li\u003e\n\u003cli\u003eSuitable for turbocharged and naturally aspirated applications\u003c\/li\u003e\n\u003cli\u003eRace-proven durability\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering \u0026amp; Construction:\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCNC Machined 1018 Steel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManufactured from premium 1018 mild steel for excellent strength, weldability, and long-term durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision 3D Port Design\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMachined port entries provide improved runner transitions and professional fabrication quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHeavy-Duty 1\/2\" Thickness\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned to resist warping and maintain a reliable seal under extreme operating conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFabricator Friendly\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for custom turbo manifolds, race headers, and high-performance exhaust systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: 1018 Mild Steel\u003c\/li\u003e\n\u003cli\u003eThickness: 0.500\" (12.7mm)\u003c\/li\u003e\n\u003cli\u003eConfiguration: B-Series 4-Port Design\u003c\/li\u003e\n\u003cli\u003eFinish: Raw Machined Steel\u003c\/li\u003e\n\u003cli\u003eManufacturing Process: CNC Machined\u003c\/li\u003e\n\u003cli\u003eApplication: Exhaust Header \/ Turbo Manifold Fabrication\u003c\/li\u003e\n\u003cli\u003eCountry of Manufacture: USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePerfect For:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCustom exhaust header fabrication\u003c\/li\u003e\n\u003cli\u003eTurbo manifold fabrication\u003c\/li\u003e\n\u003cli\u003eDrag racing applications\u003c\/li\u003e\n\u003cli\u003eRoad racing builds\u003c\/li\u003e\n\u003cli\u003eTime attack vehicles\u003c\/li\u003e\n\u003cli\u003eStreet performance projects\u003c\/li\u003e\n\u003cli\u003eHigh-horsepower forced induction setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePackage Includes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e(1) Bull Boost Performance B-Series 1018 Steel Exhaust Header Flange\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHonda B16 Engines\u003c\/li\u003e\n\u003cli\u003eHonda B18 Engines\u003c\/li\u003e\n\u003cli\u003eHonda B20 Engines\u003c\/li\u003e\n\u003cli\u003eCompatible with custom exhaust header fabrication\u003c\/li\u003e\n\u003cli\u003eCompatible with turbo manifold fabrication\u003c\/li\u003e\n\u003cli\u003eSuitable for street, drag racing, road racing, and forced induction builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional fabrication and welding are recommended\u003c\/li\u003e\n\u003cli\u003eVerify dimensions and intended application before purchase\u003c\/li\u003e\n\u003cli\u003eHardware, tubing, and gaskets are not included unless otherwise stated\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRPM Racing offers professional installation services and a wide selection of performance parts to help complete your build.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAll warranties, claims, and product-related issues must be handled directly through BULL BOOST PERFORMANCE.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Racing Precision Motorsports","offers":[{"title":"Default Title","offer_id":45568131498044,"sku":"729859401904","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/5934\/4956\/files\/B-Series-Flange2_852x852_b3b11fe0-a4e0-463d-8866-f0fbb7a4af67.webp?v=1782063197","url":"https:\/\/rpm-racing.com\/products\/bull-boost-performance-b-series-1018-steel-exhaust-header-flange","provider":"Racing Precision Motorsports","version":"1.0","type":"link"}