{"product_id":"dorch-engineering-s55-lift-kit-hpfp-upgrade","title":"Dorch Engineering S55 Lift Kit - HPFP Upgrade","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eRather than offering a standard HPFP upgrade for the S55 platform, Dorch Engineering went back to the drawing board to develop a higher-flowing, easier-to-tune solution that genuinely saves significant money over traditional HPFP upgrades. The result pushes \u003cstrong\u003e+38% more fuel flow\u003c\/strong\u003e out of your existing OEM high-pressure fuel pumps, without replacing them entirely.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe process starts with genuine BMW vacuum pump cores, into which Dorch Engineering installs their proprietary cam within the OEM assembly, using their own manufacturing tooling and validation equipment. Because the S55 uses some of the smallest fuel pump cams in the entire Bosch lineup, this additional flow is achieved without sacrificing the longevity or reliability of the OEM pumps. There's no cutting, no bending, no crimping, this kit drops right in like a factory part, and genuinely does not require any special tuning to get up and running, all the safety and sophistication of the stock DME remains intact. Capable of delivering up to 2,100 cc\/rev, this kit lets you push your S55 fueling further while maintaining genuine system reliability.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eIn order to see the true benefit of this kit, it's highly recommended to also upgrade to the larger S63 EU5 injectors\u003c\/strong\u003e, readily available genuine OEM BMW injectors proven to support up to 800whp on full E85.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e this kit requires a core, you'll need to send in your genuine BMW vacuum pump\/HPFP unit for modification. All sales through this product are final, no returns or refunds are offered.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eWhy Choose This HPFP Upgrade\u003c\/h2\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e+38% more fuel flow from your existing OEM high-pressure fuel pumps\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eNo special tuning required, drops in exactly like a factory part\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eNo cutting, bending, or crimping involved in the process\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRetains full OEM DME safety and sophistication\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCapable of delivering up to 2,100 cc\/rev\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAchieves the flow increase without sacrificing OEM pump longevity or reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eCompatibility\u003c\/h2\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW F80 M3 (S55)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW F82\/F83 M4 (S55)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW F87 M2 Competition\/CS (S55)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eRequires a core:\u003c\/strong\u003e you must send in a genuine BMW vacuum pump\/HPFP unit to be modified as part of this purchase.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eRecommended pairing:\u003c\/strong\u003e Dorch Engineering's S63 EU5 High Flow Injectors, sold separately, for the full benefit of this upgrade.\u003c\/p\u003e","brand":"Dorch Engineering","offers":[{"title":"No - I will send my vacuum pump upfront","offer_id":54462612767053,"sku":"DEN-FUP-S55-001","price":1802.84,"currency_code":"EUR","in_stock":false},{"title":"Yes - Additional Charge","offer_id":54462612799821,"sku":"DEN-FUP-S55-001","price":2262.64,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/4808\/2253\/files\/dorch-engineering-s55-lift-kit-hpfp-upgrade.jpg?v=1785944324","url":"https:\/\/i6tuning.com\/products\/dorch-engineering-s55-lift-kit-hpfp-upgrade","provider":"i6 Tuning","version":"1.0","type":"link"}