{"product_id":"dorch-n55-hpfp-upgrade-ds15-ds25-ds3","title":"DORCH | N55 HPFP Upgrade (DS15 \/ DS25 \/ DS3)","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUpgrade the fuel system of a BMW N55 with a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDorch Engineering High Pressure Fuel Pump (HPFP)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Available in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDS15, DS25 and DS3\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e configurations, these direct-injection fuel pump upgrades are designed for tuned N55 engines that have exceeded the capacity of the factory HPFP.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEach Dorch N55 HPFP is engineered as an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eOEM-style, plug-and-play replacement\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e with full DME control. No cutting, bending or crimping of the factory fuel system is required on supported applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhether the vehicle is a street-driven BMW running an upgraded turbo, an ethanol-powered build or a high-power track setup, the three Dorch HPFP options make it possible to select the fueling capacity that best matches the intended power level.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eChoose the Right Dorch N55 HPFP\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eDorch DS15-250 – Stage 1.5 HPFP\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDorch DS15-250\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e replaces the previous Dorch Stage 1 \/ DS1 pump and is designed for moderately upgraded N55 builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe pump has been redesigned from the ground up with revisions to the pressure chamber, spring rates, plunger depth and volumetric efficiency. The DS15 is capable of operating at up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e250 bar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and provides a substantial increase in fuel flow compared with the factory N55 HPFP.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt is an excellent choice for vehicles that need more fuel than the stock HPFP can provide without requiring the additional capacity of the DS25 or DS3.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDS15-250 Flow Potential\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eConfiguration\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eGasoline \/ E10\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eE85\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eOperating Pressure\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDS15-250\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 550 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 400 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDS15-250 + 38% N55LK\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 700 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 560 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDS15-250 + 49% N55LK\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 750 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 610 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eActual fuel-system capacity can vary depending on ethanol content, tuning strategy, injectors, fuel pressure targets and engine configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDorch DS25-250 – Stage 2.5 HPFP\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDorch DS25-250\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e replaces the previous Dorch Stage 2 \/ DS2 and provides considerably more flow capacity for higher-output N55 applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eLike the DS15, the DS25 was redesigned with optimized internal geometry, pressure chamber characteristics, spring rates, plunger depth and volumetric efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe DS25 is designed to operate efficiently at up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e250 bar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, making it particularly suitable for high-power direct-injection setups and applications using upgraded DI injectors.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor builds requiring still more fuel capacity, the DS25 can be combined with a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDorch N55 Lift Kit (N55LK)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDS25-250 Flow Potential\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eConfiguration\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eGasoline\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eE85\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eOperating Pressure\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDS25-250\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 750 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 550 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDS25-250 + 38% N55LK\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 900 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 690 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDS25-250 + 49% N55LK\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 1,000 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 770 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 bar\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe DS25 is well suited to upgraded-turbo N55 builds where the DS15 no longer provides sufficient fueling headroom.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDorch DS3 – Maximum Single-Pump N55 HPFP\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDorch DS3 \/ Stage 3 HPFP\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is the highest-flowing standalone N55 HPFP in the Dorch range covered here.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDesigned for builds that require more fuel than the DS25 can supply but do not require a complete N55LK combination, the DS3 uses Dorch's largest pump bore and provides approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e20% more fueling capacity than the DS25\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt retains the same OEM-style drop-in installation concept while providing significantly increased direct-injection fueling capability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDS3 Flow Capacity\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eFuel\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eFlow Capacity\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eGasoline\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 825 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eE50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 700 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eE85\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 600 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe DS3 is particularly suitable for high-output and track-focused N55 builds where maximum fueling from a single HPFP is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDS15 vs DS25 vs DS3\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe appropriate Dorch HPFP depends primarily on the vehicle's fuel type and expected power level.\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eHPFP\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eGasoline Capacity\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eE85 Capacity\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eBest Suited For\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eDS15-250\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 550 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 400 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStreet builds and moderate turbo upgrades\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eDS25-250\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 750 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 550 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh-power upgraded-turbo builds\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eDS3\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 825 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 600 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum standalone HPFP performance\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eDS15 + N55LK\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 750 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 610 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigher-output Lift Kit combinations\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan\u003eDS25 + N55LK\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 1,000 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 770 WHP\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eExtreme direct-injection power builds\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePower figures represent approximate fuel-flow potential and should not be interpreted as guaranteed engine output. Actual capacity depends on the complete fuel system, ethanol percentage, tuning, fuel pressure, injector configuration and engine setup.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eTrue Plug-and-Play N55 HPFP Upgrade\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDorch N55 HPFP kits are designed as direct-fit upgrades for compatible BMW N55 applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe pumps retain \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003efull factory DME control\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, allowing the engine management system to continue controlling high-pressure fuel delivery in the same manner as the OEM pump.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eInstallation does not require cutting, bending or crimping fuel lines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDepending on the selected pump, the kit includes the required high-pressure fuel line, low-pressure connection components and plug-and-play electrical adapter harness for installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e250 Bar High-Pressure Fuel System\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe DS15-250 and DS25-250 are designed for operation at up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e250 bar\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDorch supplies a compatible high-pressure fuel line with its HPFP kits, allowing the upgraded pump to connect directly to the N55 fuel rail without modifying the OEM hardline.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis higher operating-pressure capability can also help maximize available flow when used with suitable direct-injection hardware and calibration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMHD \u0026amp; Bootmod3 Tuning Support\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA software calibration change is required when installing a Dorch upgraded HPFP.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBoth \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMHD\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBootmod3 (BM3)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e support Dorch HPFP configurations. When flashing the vehicle, the appropriate Dorch HPFP option can be selected in the tuning software.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor custom tuning environments, the required HPFP calibration changes can also be implemented through the vehicle's calibration file.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe vehicle should \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enot be operated with an upgraded HPFP without the correct software configuration\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDorch Engineering Reliability\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDorch HPFP systems are developed specifically for high-performance direct-injection applications and are designed to retain OEM-style functionality while substantially increasing available fuel flow.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKey benefits include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eOEM-style plug-and-play fitment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFull DME-controlled fuel-pressure operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo cutting, bending or crimping required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-flow direct-injection fueling\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupport for gasoline and ethanol fuel blends\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMHD and Bootmod3 compatibility\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e250-bar capability on DS15-250 and DS25-250\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDorch-developed HPFP calibration support\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDorch Lifetime Warranty\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTechnical and tuning support from Dorch Engineering\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eKit Contents\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDepending on the selected HPFP version, the kit includes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eDorch HPFP with installation hardware\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDorch high-pressure fuel line\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLow-pressure fuel hose \/ line\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePlug-and-play adapter harness\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRequired mounting and connection hardware\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDorch Lifetime Warranty\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDS15 kit also includes a low-pressure line bracket\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eKit contents can differ slightly between HPFP versions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eBMW N55 Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Dorch DS15, DS25 and DS3 HPFP upgrades are designed for compatible BMW N55 vehicles including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eBMW F87 M2\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eBMW F20 \/ F21 135i and 135xi\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eBMW F22 \/ F23 235i and 235xi\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eBMW F30 \/ F31 \/ F34 335i and 335xi\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eBMW F32 \/ F33 \/ F36 435i and 435xi\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBMW F10 \/ F11 535i and 535xi\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e*\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBMW F25 \/ F26 X3 35i and X4 35i\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e*\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003eBMW F15 \/ F16 X5 35i and X6 35i\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBMW E8X 135i\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e*\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBMW E9X 335i\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e*\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBMW E84 X1 35i\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e*\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eBMW E70 \/ E71 X5 35i and X6 35i\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e*\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003e*Applicable only to 2013+ vehicles equipped with the OEM Bosch HPFP.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eThese HPFP kits are not compatible with 2011–2012 N55 vehicles.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eVehicle compatibility should always be confirmed before ordering, particularly for early N55 models or vehicles with a previous fuel-system conversion.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eInstallation Instructions\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDorch N55 HPFP installation information and technical resources:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003ca href=\"https:\/\/dorchengineering.com\/technical-resources\" data-rich-text-autolink=\"\"\u003e\u003cspan\u003ehttps:\/\/dorchengineering.com\/technical-resources\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Upgrade the N55 HPFP?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAs turbocharger airflow, boost pressure and ethanol content increase, the factory N55 high-pressure fuel pump can become a limiting factor.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhen the HPFP can no longer maintain the commanded rail pressure, additional engine airflow cannot safely be supported by the direct-injection fuel system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAn upgraded Dorch HPFP increases available high-pressure fuel volume, providing additional fueling headroom for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eUpgraded turbochargers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigher boost levels\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eE30, E50 and E85 ethanol blends\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFull E85 setups\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-power street builds\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTrack and motorsport applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUpgraded direct-injection systems\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWith three different pump capacities available, the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDorch DS15, DS25 and DS3 N55 HPFP upgrades\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e allow the fuel system to be matched closely to the intended power target instead of unnecessarily oversizing the pump.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eImportant\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFuel-flow and horsepower figures are approximate capacity figures supplied for the respective pump configurations. Actual supported power can vary significantly depending on fuel composition, fuel pressure, injector capacity, tuning strategy, engine configuration and other fuel-system components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProfessional installation and calibration are recommended for high-performance applications.\u003c\/span\u003e\u003c\/p\u003e","brand":"AutoTopNL","offers":[{"title":"DS15 \/ Old Style (Pre-12\/2013","offer_id":55184729964887,"sku":null,"price":1095.87,"currency_code":"EUR","in_stock":true},{"title":"DS15 \/ New Style (12\/2013+)","offer_id":55184729997655,"sku":null,"price":1095.87,"currency_code":"EUR","in_stock":true},{"title":"DS25 \/ Old Style (Pre-12\/2013","offer_id":55184730030423,"sku":null,"price":1594.21,"currency_code":"EUR","in_stock":true},{"title":"DS25 \/ New Style (12\/2013+)","offer_id":55184730063191,"sku":null,"price":1594.21,"currency_code":"EUR","in_stock":true},{"title":"DS3 \/ Old Style (Pre-12\/2013","offer_id":55184730095959,"sku":null,"price":2183.47,"currency_code":"EUR","in_stock":true},{"title":"DS3 \/ New Style (12\/2013+)","offer_id":55184730128727,"sku":null,"price":2183.47,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0486\/8066\/5239\/files\/c45c8283-0598-4380-8da2-30e89626f382.png?v=1790600511","url":"https:\/\/autotopnl.shop\/products\/dorch-n55-hpfp-upgrade-ds15-ds25-ds3","provider":"AutoTopNL","version":"1.0","type":"link"}