{"title":"Vortex Velocity Stacks \u0026 Carburettor Ram Pipes","description":"\u003cp\u003eShop the IPNG \u003cstrong\u003eVortex velocity stack and carburettor ram pipe\u003c\/strong\u003e range, developed to optimise intake airflow for classic, performance and motorsport applications.\u003c\/p\u003e\u003cp\u003eOur range includes velocity stacks and intake trumpets for popular \u003cstrong\u003eSU, Weber and Dellorto carburettors\u003c\/strong\u003e, including SU HS4, HIF38, HIF44, Weber DCOE and Dellorto DHLA applications. Multiple bore sizes and stack lengths are available to suit different carburettor and engine bay configurations.\u003c\/p\u003e\u003cp\u003eDesigned and manufactured by IPNG Automotive, our Vortex intake components combine smooth bellmouth entries with durable high-temperature materials for specialist road, restoration and performance builds.\u003c\/p\u003e\u003cp\u003eNot sure which stack fits your carburettor? Use our \u003ca href=\"\/blogs\/installation-guides\/vortex-velocity-stack-fitment-selection-guide\"\u003e\u003cstrong\u003eVortex velocity stack fitment \u0026amp; selection guide\u003c\/strong\u003e\u003c\/a\u003e to compare SU, Weber and Dellorto applications by carburettor type, intake or bore size, stack height and IPNG part number.\u003c\/p\u003e","products":[{"product_id":"2halfinchsustack","title":"2.5\" SU Carb HS4 HIF38\/4 H4 Ram Pipe Trumpet","description":"\u003ch2\u003eVortex 2.5\" Velocity Stack for SU Carburettors – 35mm Intake\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eOne 3D-printed 2.5\" tall “Vortex” velocity stack for SU carburettors with a 35mm intake.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned to improve intake performance, this longer Vortex velocity stack provides a smooth bellmouth-style entry into the carburettor and is designed for compatible SU applications.\u003c\/p\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned to fit:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSU HS4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSU HIF 38\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSU H4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSU HIF4\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese carburettors are commonly used across a wide range of classic British vehicles, including \u003cstrong\u003eMinis, Jaguars, Triumphs, MGs and other compatible applications\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e2.5\" tall Vortex velocity stack\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e35mm intake size\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned for compatible SU carburettors\u003c\/li\u003e\n\u003cli\u003eDesigned to improve intake airflow and performance\u003c\/li\u003e\n\u003cli\u003eSmooth bellmouth-style intake entry\u003c\/li\u003e\n\u003cli\u003eLonger 2.5\" design for applications where additional stack length is desired\u003c\/li\u003e\n\u003cli\u003eManufactured from \u003cstrong\u003ehigh-temperature-resistant PETG\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOther sizes and lengths available\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e ★☆☆☆☆\u003cbr\u003e\u003cstrong\u003eEstimated Time:\u003c\/strong\u003e Approximately 10–20 minutes, depending on carburettor setup\u003c\/p\u003e\u003cp\u003eThe velocity stack is designed to fit directly to the compatible SU carburettor using the existing mounting arrangement.\u003c\/p\u003e\u003cp\u003eBefore use, ensure the stack is securely fitted and that there is sufficient clearance within the engine bay, particularly with the increased 2.5\" length.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003e1 × 2.5\" Vortex velocity stack – 35mm intake\u003c\/strong\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCarburettor NOT included.\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eMaterial \u0026amp; Finish\u003c\/h3\u003e\u003cp\u003eManufactured from \u003cstrong\u003ehigh-temperature-resistant PETG plastic\u003c\/strong\u003e, providing a durable solution for automotive applications.\u003c\/p\u003e\u003ch3\u003eCustom Options\u003c\/h3\u003e\u003cp\u003eOther \u003cstrong\u003eintake sizes and velocity stack lengths\u003c\/strong\u003e are also available.\u003c\/p\u003e\u003cp\u003ePlease get in touch if you require a different size or configuration.\u003c\/p\u003e\u003cp\u003eFor the same 35mm SU fitment, compare the \u003ca href=\"\/products\/1halfinchsustack\"\u003e\u003cstrong\u003e1.5\" Vortex stack (IP-0045)\u003c\/strong\u003e\u003c\/a\u003e or \u003ca href=\"\/products\/2inchsustack\"\u003e\u003cstrong\u003e2\" Vortex stack (IP-0044)\u003c\/strong\u003e\u003c\/a\u003e. If your carburettor is an \u003cstrong\u003eSU HIF44\u003c\/strong\u003e, use the dedicated \u003ca href=\"\/products\/hiff44sustack2inch\"\u003e\u003cstrong\u003eHIF44 2\" Vortex stack (IP-0010)\u003c\/strong\u003e\u003c\/a\u003e instead.\u003c\/p\u003e\u003ch3\u003eImportant Information\u003c\/h3\u003e\u003cp\u003eThis is an \u003cstrong\u003eaftermarket IPNG performance component\u003c\/strong\u003e and is not manufactured by or affiliated with SU, Mini, Jaguar, Triumph or MG.\u003c\/p\u003e\u003cp\u003ePlease ensure the selected velocity stack provides adequate clearance within your specific engine bay and intake setup before installation.\u003c\/p\u003e\u003ch3\u003eIPNG Part Number\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIPNG SKU: IP-0046\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eVortex Fitment \u0026amp; Selection Guide\u003c\/h3\u003e\u003cp\u003eNot sure which Vortex stack is right for your carburettor? Use our \u003ca href=\"\/blogs\/installation-guides\/vortex-velocity-stack-fitment-selection-guide\"\u003e\u003cstrong\u003eVortex velocity stack fitment \u0026amp; selection guide\u003c\/strong\u003e\u003c\/a\u003e to compare carburettor fitment, intake or bore size, stack height and IPNG part number.\u003c\/p\u003e","brand":"IPNG Automotive","offers":[{"title":"Default Title","offer_id":58383146090831,"sku":"IP-0046","price":19.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1031\/7729\/0063\/files\/imgi_102_s-l1600.png?v=1786099582"},{"product_id":"1halfinchsustack","title":"1.5\" HS4 HIF38\/4 H4 SU Carb Ram Pipe Trumpet","description":"\u003ch2\u003eVortex 1.5\" Velocity Stack for SU Carburettors – 35mm Intake\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eOne 3D-printed 1.5\" tall “Vortex” velocity stack for SU carburettors with a 35mm intake.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned to improve intake flow, this Vortex velocity stack has been developed with the \u003cstrong\u003eA-Series engine tuning principles discussed in the highly regarded works of David Vizard\u003c\/strong\u003e in mind.\u003c\/p\u003e\u003cp\u003eDevelopment testing indicated an \u003cstrong\u003eapproximately 5.2% improvement in intake flow over the standard A-Series setup\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThe Vortex design provides a smooth, controlled transition into the carburettor, helping optimise airflow into the engine.\u003c\/p\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned to fit:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSU HS4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSU HIF 38\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSU H4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSU HIF4\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese carburettors are commonly found across a wide range of classic British vehicles, including \u003cstrong\u003eMinis, Jaguars, Triumphs, MGs and other compatible applications\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1.5\" tall Vortex velocity stack\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e35mm intake size\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned for compatible SU carburettors\u003c\/li\u003e\n\u003cli\u003eVortex internal design developed to optimise intake airflow\u003c\/li\u003e\n\u003cli\u003eApproximately \u003cstrong\u003e5.2% increased intake flow\u003c\/strong\u003e over the standard A-Series setup during development testing\u003c\/li\u003e\n\u003cli\u003eDeveloped with reference to \u003cstrong\u003eDavid Vizard's A-Series engine tuning principles\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth bellmouth-style intake entry\u003c\/li\u003e\n\u003cli\u003eManufactured from \u003cstrong\u003ehigh-temperature-resistant plastic\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOther sizes and lengths available\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e ★☆☆☆☆\u003cbr\u003e\u003cstrong\u003eEstimated Time:\u003c\/strong\u003e Approximately 10–20 minutes, depending on carburettor setup\u003c\/p\u003e\u003cp\u003eThe velocity stack is designed to fit directly to the compatible SU carburettor using the existing mounting arrangement.\u003c\/p\u003e\u003cp\u003eBefore use, ensure the stack is securely fitted and that there is sufficient clearance within the engine bay.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003e1 × 1.5\" Vortex velocity stack – 35mm intake\u003c\/strong\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCarburettor NOT included.\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eMaterial \u0026amp; Finish\u003c\/h3\u003e\u003cp\u003e3D printed using \u003cstrong\u003ehigh-temperature-resistant plastic\u003c\/strong\u003e, making it suitable for use within demanding automotive environments.\u003c\/p\u003e\u003ch3\u003eCustom Options\u003c\/h3\u003e\u003cp\u003eOther \u003cstrong\u003eintake sizes and velocity stack lengths\u003c\/strong\u003e are available.\u003c\/p\u003e\u003cp\u003ePlease get in touch if you require a different size or configuration.\u003c\/p\u003e\u003cp\u003eFor the same 35mm SU fitment, compare the \u003ca href=\"\/products\/2inchsustack\"\u003e\u003cstrong\u003e2\" Vortex stack (IP-0044)\u003c\/strong\u003e\u003c\/a\u003e or longer \u003ca href=\"\/products\/2halfinchsustack\"\u003e\u003cstrong\u003e2.5\" Vortex stack (IP-0046)\u003c\/strong\u003e\u003c\/a\u003e. If your carburettor is an \u003cstrong\u003eSU HIF44\u003c\/strong\u003e, use the dedicated \u003ca href=\"\/products\/hiff44sustack2inch\"\u003e\u003cstrong\u003eHIF44 2\" Vortex stack (IP-0010)\u003c\/strong\u003e\u003c\/a\u003e instead.\u003c\/p\u003e\u003ch3\u003eImportant Information\u003c\/h3\u003e\u003cp\u003eThis is an \u003cstrong\u003eaftermarket IPNG performance component\u003c\/strong\u003e and is not manufactured by or affiliated with SU, Mini, Jaguar, Triumph or MG.\u003c\/p\u003e\u003cp\u003eThe stated airflow improvement is based on development testing and may vary depending on the specific carburettor, engine and intake configuration.\u003c\/p\u003e\u003ch3\u003eIPNG Part Number\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIPNG SKU: IP-0045\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eVortex Fitment \u0026amp; Selection Guide\u003c\/h3\u003e\u003cp\u003eNot sure which Vortex stack is right for your carburettor? Use our \u003ca href=\"\/blogs\/installation-guides\/vortex-velocity-stack-fitment-selection-guide\"\u003e\u003cstrong\u003eVortex velocity stack fitment \u0026amp; selection guide\u003c\/strong\u003e\u003c\/a\u003e to compare carburettor fitment, intake or bore size, stack height and IPNG part number.\u003c\/p\u003e","brand":"IPNG Automotive","offers":[{"title":"Default Title","offer_id":58383146156367,"sku":"IP-0045","price":19.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1031\/7729\/0063\/files\/imgi_126_s-l1600_4ec6c4a2-72e4-4989-9880-f865367e5905.png?v=1785977078"},{"product_id":"2inchsustack","title":"2\" SU Carb HS4 HIF38\/4 H4 Ram Pipe Trumpet","description":"\u003ch2\u003eVortex 2\" Velocity Stack for SU Carburettors – 35mm Intake\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eOne 3D-printed 2\" tall “Vortex” velocity stack for SU carburettors with a 35mm intake.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned to improve the airflow characteristics of the intake system, this Vortex velocity stack has been developed with the \u003cstrong\u003eA-Series engine tuning principles discussed in the highly regarded works of David Vizard\u003c\/strong\u003e in mind.\u003c\/p\u003e\u003cp\u003eTesting during development indicated an \u003cstrong\u003eapproximately 5.2% improvement in intake flow over the standard A-Series setup\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThe integrated Vortex design is intended to provide a smoother, more controlled transition into the carburettor, helping optimise airflow into the engine.\u003c\/p\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eDesigned to fit the following \u003cstrong\u003eSU carburettors\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHS4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHIF 38\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eH4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHIF4\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese carburettors are commonly found across a wide range of classic British vehicles, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eClassic Mini\u003c\/li\u003e\n\u003cli\u003eJaguar\u003c\/li\u003e\n\u003cli\u003eTriumph\u003c\/li\u003e\n\u003cli\u003eMG\u003c\/li\u003e\n\u003cli\u003eAnd many other applications using compatible SU carburettors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e2\" tall Vortex velocity stack\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e35mm intake size\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for compatible SU carburettors\u003c\/li\u003e\n\u003cli\u003eVortex internal design developed to optimise airflow\u003c\/li\u003e\n\u003cli\u003eApproximately \u003cstrong\u003e5.2% increased intake flow\u003c\/strong\u003e over the standard A-Series setup during development testing\u003c\/li\u003e\n\u003cli\u003eDeveloped with reference to \u003cstrong\u003eDavid Vizard's A-Series engine tuning principles\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmooth bellmouth-style intake entry\u003c\/li\u003e\n\u003cli\u003eHigh-temperature-resistant construction\u003c\/li\u003e\n\u003cli\u003eOther sizes and lengths available\u003c\/li\u003e\n\u003cli\u003eIdeal for classic British performance and restoration applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e ★☆☆☆☆\u003cbr\u003e\u003cstrong\u003eEstimated Time:\u003c\/strong\u003e Approximately 10–20 minutes, depending on carburettor setup\u003c\/p\u003e\u003cp\u003eThe velocity stack is designed to fit directly to the compatible SU carburettor using the existing mounting arrangement.\u003c\/p\u003e\u003cp\u003eAlways ensure the velocity stack is securely fitted and that there is adequate clearance within the engine bay before operating the vehicle.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003e1 × 2\" Vortex velocity stack – 35mm intake\u003c\/strong\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCarburettor NOT included.\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eMaterial \u0026amp; Finish\u003c\/h3\u003e\u003cp\u003eManufactured using \u003cstrong\u003ehigh-temperature-resistant plastic\u003c\/strong\u003e for durability in automotive applications.\u003c\/p\u003e\u003ch3\u003eCustom Options\u003c\/h3\u003e\u003cp\u003eOther \u003cstrong\u003eintake sizes and velocity stack lengths\u003c\/strong\u003e are also available.\u003c\/p\u003e\u003cp\u003eIf you require a different size or configuration, please get in touch to discuss your requirements.\u003c\/p\u003e\u003cp\u003eFor the same 35mm SU fitment, compare the shorter \u003ca href=\"\/products\/1halfinchsustack\"\u003e\u003cstrong\u003e1.5\" Vortex stack (IP-0045)\u003c\/strong\u003e\u003c\/a\u003e or longer \u003ca href=\"\/products\/2halfinchsustack\"\u003e\u003cstrong\u003e2.5\" Vortex stack (IP-0046)\u003c\/strong\u003e\u003c\/a\u003e. If your carburettor is an \u003cstrong\u003eSU HIF44\u003c\/strong\u003e, use the dedicated \u003ca href=\"\/products\/hiff44sustack2inch\"\u003e\u003cstrong\u003eHIF44 2\" Vortex stack (IP-0010)\u003c\/strong\u003e\u003c\/a\u003e instead.\u003c\/p\u003e\u003ch3\u003eImportant Information\u003c\/h3\u003e\u003cp\u003eThis is an \u003cstrong\u003eaftermarket IPNG performance component\u003c\/strong\u003e and is not manufactured by or affiliated with SU, Mini, Jaguar, Triumph or MG.\u003c\/p\u003e\u003cp\u003eThe stated airflow improvement is based on development testing and may vary depending on the specific carburettor, engine and intake configuration.\u003c\/p\u003e\u003ch3\u003eIPNG Part Number\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIPNG SKU: IP-0044\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eVortex Fitment \u0026amp; Selection Guide\u003c\/h3\u003e\u003cp\u003eNot sure which Vortex stack is right for your carburettor? Use our \u003ca href=\"\/blogs\/installation-guides\/vortex-velocity-stack-fitment-selection-guide\"\u003e\u003cstrong\u003eVortex velocity stack fitment \u0026amp; selection guide\u003c\/strong\u003e\u003c\/a\u003e to compare carburettor fitment, intake or bore size, stack height and IPNG part number.\u003c\/p\u003e","brand":"IPNG Automotive","offers":[{"title":"Default Title","offer_id":58383146123599,"sku":"IP-0044","price":19.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1031\/7729\/0063\/files\/imgi_166_s-l1600.png?v=1785976882"},{"product_id":"weber45dcoe","title":"2 X WEBER 45 DCOE Dellorto 2\" Ram Pipe Velocity Stack Intake Trumpet","description":"\u003ch2\u003ePair of Vortex Velocity Stacks – 2\" Tall, 45mm Bore\u003c\/h2\u003e\u003cp\u003eUpgrade your induction system with a pair of \u003cstrong\u003eIPNG Vortex velocity stacks\u003c\/strong\u003e, designed for 45mm Weber and Dellorto carburettor applications.\u003c\/p\u003e\u003cp\u003eFeaturing a smooth bellmouth entry and integrated curved guide vanes, the Vortex design is intended to help \u003cstrong\u003esmooth and control airflow entering the carburettor\u003c\/strong\u003e, reducing turbulence at the intake and promoting efficient airflow.\u003c\/p\u003e\u003cp\u003eWith a \u003cstrong\u003e45mm bore, 65mm mounting stud spacing and 2\" overall height\u003c\/strong\u003e, these velocity stacks provide a bolt-on solution for a range of larger Weber and Dellorto carburettors.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePair of two\u003c\/strong\u003e Vortex velocity stacks\u003c\/li\u003e\n\u003cli\u003e45mm intake bore\u003c\/li\u003e\n\u003cli\u003e65mm mounting stud spacing\u003c\/li\u003e\n\u003cli\u003e2\" \/ approximately 51mm tall\u003c\/li\u003e\n\u003cli\u003eDesigned for Weber and Dellorto carburettors\u003c\/li\u003e\n\u003cli\u003eSmooth bellmouth entry\u003c\/li\u003e\n\u003cli\u003eIntegrated Vortex guide vanes\u003c\/li\u003e\n\u003cli\u003eDesigned to optimise and control intake airflow\u003c\/li\u003e\n\u003cli\u003eDurable ASA construction\u003c\/li\u003e\n\u003cli\u003eUses the original carburettor mounting studs and fixings\u003c\/li\u003e\n\u003cli\u003eCustom sizes and lengths available on request\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eDellorto DHLA45\/48\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDellorto DRLA45\/48\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWeber DCOE45\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWeber IDF44\/48\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003e2 velocity stacks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e2\" \/ approximately 51mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore\u003c\/th\u003e\n\u003ctd\u003e45mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Stud Spacing\u003c\/th\u003e\n\u003ctd\u003e65mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eASA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDesign\u003c\/th\u003e\n\u003ctd\u003eVortex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eOriginal carburettor fixings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eVortex Design\u003c\/h3\u003e\u003cp\u003eThe Vortex velocity stack features a \u003cstrong\u003esmooth bellmouth entry\u003c\/strong\u003e designed to reduce turbulence as air enters the carburettor.\u003c\/p\u003e\u003cp\u003eIntegrated curved guide vanes within the stack are designed to help \u003cstrong\u003econtrol and direct incoming airflow\u003c\/strong\u003e, providing a smoother transition into the carburettor.\u003c\/p\u003e\u003cp\u003eThe Vortex design focuses on \u003cstrong\u003eairflow optimisation\u003c\/strong\u003e, while providing a distinctive alternative to conventional straight-bellmouth velocity stacks.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e ★★☆☆☆\u003cbr\u003e\u003cstrong\u003eEstimated Time:\u003c\/strong\u003e 15–30 minutes\u003c\/p\u003e\u003cp\u003eInstallation uses the \u003cstrong\u003eoriginal carburettor mounting studs and fixings\u003c\/strong\u003e, meaning no permanent modification to the carburettor is required.\u003c\/p\u003e\u003cp\u003ePosition the velocity stacks onto the existing mounting studs and secure using the original hardware.\u003c\/p\u003e\u003ch3\u003eAir Filtration\u003c\/h3\u003e\u003cp\u003eThe required air filtration arrangement will depend on the individual vehicle and engine setup.\u003c\/p\u003e\u003cp\u003eFor \u003cstrong\u003eexposed engine bays or vehicles regularly used in dusty environments\u003c\/strong\u003e, we recommend using a suitable \u003cstrong\u003efoam filter\u003c\/strong\u003e over the velocity stacks to help protect the engine from airborne dirt and debris.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAir filters are not included.\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e2 × 2\" Vortex velocity stacks\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eCarburettors, mounting hardware, air filters and other accessories are \u003cstrong\u003enot included\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eCustom Sizes\u003c\/h3\u003e\u003cp\u003eNeed a different height, bore or configuration?\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOther sizes and lengths are available from IPNG Automotive.\u003c\/strong\u003e Please contact us to discuss your requirements.\u003c\/p\u003e\u003cp\u003eNeed the smaller 40mm bore instead? See the \u003ca href=\"\/products\/weber40dcoe\"\u003e\u003cstrong\u003e2\" Vortex velocity stacks for Weber DCOE40 and Dellorto DHLA40 (IP-0020)\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eImportant Information\u003c\/h3\u003e\u003cp\u003eThese velocity stacks are designed around a \u003cstrong\u003e45mm bore and 65mm mounting stud spacing\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003ePlease check your carburettor dimensions before purchasing to confirm compatibility.\u003c\/p\u003e\u003ch3\u003eIPNG Part Number\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIPNG SKU:\u003c\/strong\u003e IP-0021\u003c\/p\u003e\u003ch3\u003eWhy Choose IPNG Automotive?\u003c\/h3\u003e\u003cp\u003eAt IPNG Automotive, we design and manufacture \u003cstrong\u003eOEM+ and performance-focused components for enthusiast vehicles\u003c\/strong\u003e, with a particular focus on producing parts that aren't readily available through conventional suppliers.\u003c\/p\u003e\u003cp\u003eOur Vortex range is designed with both \u003cstrong\u003efunction and appearance\u003c\/strong\u003e in mind, providing enthusiasts with practical alternatives to conventional intake components.\u003c\/p\u003e\u003ch3\u003eVortex Fitment \u0026amp; Selection Guide\u003c\/h3\u003e\u003cp\u003eNot sure which Vortex stack is right for your carburettor? Use our \u003ca href=\"\/blogs\/installation-guides\/vortex-velocity-stack-fitment-selection-guide\"\u003e\u003cstrong\u003eVortex velocity stack fitment \u0026amp; selection guide\u003c\/strong\u003e\u003c\/a\u003e to compare carburettor fitment, intake or bore size, stack height and IPNG part number.\u003c\/p\u003e","brand":"IPNG Automotive","offers":[{"title":"Default Title","offer_id":58385886347599,"sku":"IP-0021","price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1031\/7729\/0063\/files\/imgi_11_s-l1600_7864c94d-378d-43ad-a779-67a7278ff827.png?v=1786099638"},{"product_id":"weber40dcoe","title":"2 X WEBER 40 DCOE Dellorto 2\" Ram Pipe Velocity Stack Intake Trumpet","description":"\u003ch2\u003ePair of Vortex Velocity Stacks – 2\" Tall, 40mm Bore\u003c\/h2\u003e\u003cp\u003eUpgrade your induction system with a pair of \u003cstrong\u003eIPNG Vortex velocity stacks\u003c\/strong\u003e, designed for 40mm Weber and Dellorto carburettors.\u003c\/p\u003e\u003cp\u003eFeaturing a smooth bellmouth entry and integrated curved guide vanes, the Vortex design is intended to help \u003cstrong\u003esmooth and control airflow entering the carburettor\u003c\/strong\u003e, reducing turbulence at the intake and promoting efficient airflow.\u003c\/p\u003e\u003cp\u003eWith a \u003cstrong\u003e40mm bore, 65mm mounting stud spacing and 2\" overall height\u003c\/strong\u003e, these velocity stacks are designed as a direct bolt-on fit for a range of 40mm carburettors.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePair of two\u003c\/strong\u003e Vortex velocity stacks\u003c\/li\u003e\n\u003cli\u003e40mm intake bore\u003c\/li\u003e\n\u003cli\u003e65mm mounting stud spacing\u003c\/li\u003e\n\u003cli\u003e2\" \/ approximately 51mm tall\u003c\/li\u003e\n\u003cli\u003eDesigned for Weber and Dellorto 40mm carburettors\u003c\/li\u003e\n\u003cli\u003eSmooth bellmouth entry\u003c\/li\u003e\n\u003cli\u003eIntegrated Vortex guide vanes\u003c\/li\u003e\n\u003cli\u003eDesigned to optimise and control intake airflow\u003c\/li\u003e\n\u003cli\u003eDurable ASA construction\u003c\/li\u003e\n\u003cli\u003eUses the original carburettor mounting studs and fixings\u003c\/li\u003e\n\u003cli\u003eCustom sizes and lengths available on request\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePrimary verified applications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDellorto DHLA40\u003c\/li\u003e\n\u003cli\u003eWeber DCOE40\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe \u003cstrong\u003e65mm stud-centre mounting pattern\u003c\/strong\u003e is also commonly used for other 40mm carburettor applications, including Dellorto DRLA40, Weber DCOM40 and Weber IDF40.\u003c\/p\u003e\u003cp\u003eIf your carburettor has a \u003cstrong\u003e40mm bore and 65mm mounting stud centres\u003c\/strong\u003e, these stacks may also be suitable.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003e2 velocity stacks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e2\" \/ approximately 51mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore\u003c\/th\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting Stud Spacing\u003c\/th\u003e\n\u003ctd\u003e65mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eASA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDesign\u003c\/th\u003e\n\u003ctd\u003eVortex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eOriginal carburettor fixings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eVortex Design\u003c\/h3\u003e\u003cp\u003eThe Vortex velocity stack features a \u003cstrong\u003esmooth bellmouth entry\u003c\/strong\u003e to help reduce turbulence as air enters the carburettor.\u003c\/p\u003e\u003cp\u003eIntegrated curved guide vanes within the stack are designed to help \u003cstrong\u003econtrol and direct the incoming airflow\u003c\/strong\u003e, providing a more consistent transition into the carburettor.\u003c\/p\u003e\u003cp\u003eThe result is a velocity stack designed with \u003cstrong\u003eairflow optimisation as its primary purpose\u003c\/strong\u003e, while also providing a distinctive alternative to conventional straight-bellmouth designs.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e ★★☆☆☆\u003cbr\u003e\u003cstrong\u003eEstimated Time:\u003c\/strong\u003e 15–30 minutes\u003c\/p\u003e\u003cp\u003eInstallation is straightforward and requires the use of the \u003cstrong\u003eoriginal carburettor mounting studs and fixings\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eRemove the existing intake arrangement, position the Vortex velocity stacks onto the carburettor mounting studs and secure using the original hardware.\u003c\/p\u003e\u003cp\u003eNo permanent modification to the carburettor is required.\u003c\/p\u003e\u003ch3\u003eAir Filtration\u003c\/h3\u003e\u003cp\u003eThese velocity stacks can be used with different intake and filtration arrangements depending on the vehicle and engine bay configuration.\u003c\/p\u003e\u003cp\u003eFor \u003cstrong\u003eexposed engine bays or vehicles regularly used in dusty environments\u003c\/strong\u003e, we recommend using a suitable \u003cstrong\u003efoam filter\u003c\/strong\u003e over the velocity stacks to help protect the engine from airborne dirt and debris.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAir filters are not included.\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e2 × 2\" Vortex velocity stacks\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eCarburettors, mounting hardware, air filters and other accessories are \u003cstrong\u003enot included\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eCustom Sizes\u003c\/h3\u003e\u003cp\u003eNeed a different height, bore or configuration?\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOther sizes and lengths are available from IPNG Automotive.\u003c\/strong\u003e Please contact us to discuss your requirements.\u003c\/p\u003e\u003cp\u003eNeed the larger 45mm bore instead? See the \u003ca href=\"\/products\/weber45dcoe\"\u003e\u003cstrong\u003e2\" Vortex velocity stacks for Weber DCOE45 and Dellorto 45mm applications (IP-0021)\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eImportant Information\u003c\/h3\u003e\u003cp\u003eThese velocity stacks are designed around a \u003cstrong\u003e40mm bore and 65mm mounting stud spacing\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003ePlease check your carburettor dimensions before purchasing to confirm compatibility.\u003c\/p\u003e\u003ch3\u003eIPNG Part Number\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIPNG SKU:\u003c\/strong\u003e IP-0020\u003c\/p\u003e\u003ch3\u003eWhy Choose IPNG Automotive?\u003c\/h3\u003e\u003cp\u003eAt IPNG Automotive, we design and manufacture \u003cstrong\u003eOEM+ and performance-focused components for enthusiast vehicles\u003c\/strong\u003e, with a particular focus on producing parts that aren't readily available through conventional suppliers.\u003c\/p\u003e\u003cp\u003eOur Vortex range is designed with both \u003cstrong\u003efunction and appearance\u003c\/strong\u003e in mind, providing enthusiasts with practical alternatives to conventional intake components.\u003c\/p\u003e\u003ch3\u003eVortex Fitment \u0026amp; Selection Guide\u003c\/h3\u003e\u003cp\u003eNot sure which Vortex stack is right for your carburettor? Use our \u003ca href=\"\/blogs\/installation-guides\/vortex-velocity-stack-fitment-selection-guide\"\u003e\u003cstrong\u003eVortex velocity stack fitment \u0026amp; selection guide\u003c\/strong\u003e\u003c\/a\u003e to compare carburettor fitment, intake or bore size, stack height and IPNG part number.\u003c\/p\u003e","brand":"IPNG Automotive","offers":[{"title":"Default Title","offer_id":58385886380367,"sku":"IP-0020","price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1031\/7729\/0063\/files\/imgi_11_s-l1600_cc8ca278-03a3-4e4d-8432-247333719e17.png?v=1786099644"},{"product_id":"hiff44sustack2inch","title":"2\" SU Carb Hiff44 Ram Pipe Velocity Stack","description":"\u003ch2\u003e2\" Vortex Velocity Stack for SU HIF44 Carburettors\u003c\/h2\u003e\u003cp\u003eUnlock improved airflow from your \u003cstrong\u003eSU HIF44 carburettor\u003c\/strong\u003e with the IPNG Automotive 2\" Vortex Velocity Stack.\u003c\/p\u003e\u003cp\u003eDesigned with performance in mind and developed in accordance with the principles outlined in David Vizard's highly regarded \u003cstrong\u003eA-Series engine tuning\u003c\/strong\u003e work, this velocity stack has been tested to provide an \u003cstrong\u003eapproximately 5.2% improvement in airflow\u003c\/strong\u003e over the standard A-Series setup.\u003c\/p\u003e\u003cp\u003eThe Vortex design combines a smooth bellmouth entry with integrated curved guide vanes, helping control the incoming airflow and reduce turbulence as it enters the carburettor.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned specifically for \u003cstrong\u003eSU HIF44 carburettors\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e2\" tall velocity stack design\u003c\/li\u003e\n\u003cli\u003eTested to provide approximately \u003cstrong\u003e5.2% increased airflow\u003c\/strong\u003e over the standard A-Series setup\u003c\/li\u003e\n\u003cli\u003eDesigned in accordance with principles from David Vizard's A-Series engine tuning work\u003c\/li\u003e\n\u003cli\u003eSmooth bellmouth entry helps reduce turbulence\u003c\/li\u003e\n\u003cli\u003eIntegrated curved guide vanes help direct airflow into a controlled circular motion\u003c\/li\u003e\n\u003cli\u003eDesigned to improve airflow into the carburettor\u003c\/li\u003e\n\u003cli\u003eManufactured using high-temperature-resistant plastic\u003c\/li\u003e\n\u003cli\u003e3D printed by IPNG Automotive\u003c\/li\u003e\n\u003cli\u003eOther sizes and lengths available\u003c\/li\u003e\n\u003cli\u003eRetains the original carburettor fixing arrangement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cp\u003eThe HIF44 is a popular \u003cstrong\u003e1¾\" SU carburettor\u003c\/strong\u003e found across a wide range of classic British vehicles. This velocity stack is suitable for HIF44 applications including vehicles such as:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMini\u003c\/li\u003e\n\u003cli\u003eJaguar\u003c\/li\u003e\n\u003cli\u003eTriumph\u003c\/li\u003e\n\u003cli\u003eMG\u003c\/li\u003e\n\u003cli\u003eOther classic British vehicles fitted with an SU HIF44 carburettor\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePlease confirm that your carburettor is an SU HIF44 before purchasing.\u003c\/strong\u003e\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003cp\u003eThe standard carburettor inlet can create turbulence and airflow restriction as air enters the carburettor. A properly designed velocity stack provides a smoother transition into the carburettor, helping air enter more efficiently.\u003c\/p\u003e\u003cp\u003eThe IPNG \u003cstrong\u003eVortex\u003c\/strong\u003e design takes this concept further by incorporating curved guide vanes within the inlet. These vanes help guide incoming air into a controlled circular motion, designed to improve the quality and efficiency of the airflow entering the carburettor.\u003c\/p\u003e\u003cp\u003eThe result is a velocity stack designed not simply to increase the available intake area, but to \u003cstrong\u003eactively manage the airflow entering the HIF44\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eIndependent testing of this design has demonstrated an \u003cstrong\u003eapproximately 5.2% improvement in airflow over the standard A-Series setup\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThe design has been developed with reference to the established A-Series tuning principles associated with \u003cstrong\u003eDavid Vizard\u003c\/strong\u003e, making it particularly suited to enthusiasts looking to optimise the breathing characteristics of their classic A-Series engine.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e ★☆☆☆☆\u003cbr\u003e\u003cstrong\u003eEstimated Time:\u003c\/strong\u003e 15–30 minutes\u003c\/p\u003e\u003cp\u003eThe velocity stack is designed to retain the \u003cstrong\u003eoriginal HIF44 carburettor fixing arrangement\u003c\/strong\u003e, making installation straightforward.\u003c\/p\u003e\u003cp\u003eRemove the existing intake\/filter arrangement, fit the velocity stack to the HIF44 using the original fixing arrangement and ensure everything is securely fastened before use.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × 2\" Vortex Velocity Stack for SU HIF44 carburettor\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eImportant Information\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eCarburettor, manifold, air filter and other accessories are not included.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis listing is for \u003cstrong\u003eone 2\" Vortex velocity stack only\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003eThis product is designed specifically for the \u003cstrong\u003eSU HIF44 carburettor\u003c\/strong\u003e. Please confirm your carburettor type before purchasing.\u003c\/p\u003e\u003cp\u003eOther Vortex velocity stack sizes and lengths are also available from IPNG Automotive.\u003c\/p\u003e\u003cp\u003eUsing an SU HS4, HIF38, HIF4 or H4 with a 35mm intake instead? Compare our \u003ca href=\"\/products\/1halfinchsustack\"\u003e\u003cstrong\u003e1.5\" Vortex stack (IP-0045)\u003c\/strong\u003e\u003c\/a\u003e, \u003ca href=\"\/products\/2inchsustack\"\u003e\u003cstrong\u003e2\" Vortex stack (IP-0044)\u003c\/strong\u003e\u003c\/a\u003e and \u003ca href=\"\/products\/2halfinchsustack\"\u003e\u003cstrong\u003e2.5\" Vortex stack (IP-0046)\u003c\/strong\u003e\u003c\/a\u003e for the 35mm SU fitment.\u003c\/p\u003e\u003ch3\u003eIPNG Part Number\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIPNG SKU:\u003c\/strong\u003e IP-0010\u003c\/p\u003e\u003ch3\u003eWhy Choose IPNG Automotive?\u003c\/h3\u003e\u003cp\u003eAt IPNG Automotive, we specialise in developing \u003cstrong\u003eperformance-focused and OEM+ components for enthusiast vehicles\u003c\/strong\u003e, combining modern manufacturing techniques with proven principles from traditional engine tuning.\u003c\/p\u003e\u003cp\u003eOur aim is to develop practical performance products that provide measurable improvements while remaining suitable for the classic vehicles they were designed for.\u003c\/p\u003e\u003ch3\u003eVortex Fitment \u0026amp; Selection Guide\u003c\/h3\u003e\u003cp\u003eNot sure which Vortex stack is right for your carburettor? Use our \u003ca href=\"\/blogs\/installation-guides\/vortex-velocity-stack-fitment-selection-guide\"\u003e\u003cstrong\u003eVortex velocity stack fitment \u0026amp; selection guide\u003c\/strong\u003e\u003c\/a\u003e to compare carburettor fitment, intake or bore size, stack height and IPNG part number.\u003c\/p\u003e","brand":"IPNG Automotive","offers":[{"title":"Default Title","offer_id":58393787760975,"sku":"IP-0010","price":15.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1031\/7729\/0063\/files\/imgi_137_s-l1600_cb5b4330-6113-418c-ae10-895429f6774d.png?v=1785980951"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1031\/7729\/0063\/collections\/stack.png?v=1787487678","url":"https:\/\/ipng.store\/collections\/carburettor-parts.oembed","provider":"IPNG Automotive","version":"1.0","type":"link"}