{"product_id":"ie-hpfp-internal-upgrade-kit-for-audi-b9-s4-s5-sq5-3-0t-rs5-2-9t","title":"IE HPFP Internal Upgrade Kit For Audi B9 S4, S5, SQ5 3.0T \u0026 RS5 2.9T","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe factory high-pressure fuel pump can become a limiting factor when increasing ethanol content, moving to higher-output ECU calibrations or upgrading the factory turbocharger. Integrated Engineering’s HPFP Internal Upgrade Kit increases fuel delivery while retaining the original pump housing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIE enlarges the factory 9.92mm piston to 11.68mm, increasing stroke volume from 448mm³ to 621mm³. The result is up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e38.58% more fuel volume than the factory pump\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing the additional fueling capacity required for supported ethanol and hybrid-turbo calibrations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEach piston and cylinder is manufactured as a matched set and individually measured in-house. The assembly combines a DLC-coated tool-steel piston, nitrided tool-steel cylinder and lightweight titanium retainer for reduced friction, increased wear resistance and reliable operation under demanding conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eUp to 38.58% greater stroke volume than the factory HPFP\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupports compatible ethanol and hybrid-turbo ECU calibrations\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e11.68mm DLC-coated tool-steel piston\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNitrided tool-steel cylinder for improved hardness and wear resistance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLightweight titanium spring retainer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUses the factory HPFP housing and spring\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo permanent vehicle modifications required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBroken in and verified on IE’s fuel-pump dyno\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEngineered and manufactured in the USA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e12-month, unlimited-mile limited warranty\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eVehicle Fitment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e2017–2024 Audi S4 3.0T — B9\/B9.5\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2017–2024 Audi S5 3.0T — B9\/B9.5\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2018–2024 Audi SQ5 3.0T — B9\/B9.5\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2018–2024 Audi RS5 2.9T — B9\/B9.5\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eInstallation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eInstallation requires disassembly of the factory high-pressure fuel pump and should be completed in a clean environment by an experienced technician. IE’s dedicated HPFP assembly tool is sold separately and is strongly recommended.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEstimated installation time: 2–3 hours.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProper ECU calibration is required to utilize the additional fueling capacity. Contact ORT Motorsport if you need help confirming compatibility with your current or planned tuning package.\u003c\/span\u003e\u003c\/p\u003e","brand":"Integrated Engineering","offers":[{"title":"Default Title","offer_id":50522633961570,"sku":null,"price":419.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/4395\/7090\/files\/Screenshot2026-09-22at3.08.20PM.png?v=1790104128","url":"https:\/\/ortmotorsport.com\/products\/ie-hpfp-internal-upgrade-kit-for-audi-b9-s4-s5-sq5-3-0t-rs5-2-9t","provider":"ORT Motorsport","version":"1.0","type":"link"}