When you're pushing a BMW B58 Gen1 beyond factory power levels, the fuel system can quickly become one of the most important pieces of the equation. The Dorch Engineering B58 Gen1 DS25 HPFP Upgrade is designed to provide the increased high-pressure fuel delivery needed for serious performance builds—and right now, you can save 10% on this upgrade at XPH.

Built as a high-capacity fueling solution for B58 Gen1 applications, the DS25 delivers increased flow capacity, 250-bar operating pressure, and OEM-style fitment in a complete plug-and-play package.

Built for High-Output B58 Applications

As power levels increase, the factory high-pressure fuel system can become a limiting factor. The DS25 was developed to address that limitation, giving B58 Gen1 owners significantly more fueling capacity for aggressive builds.

The DS25 is rated for approximately:

• 750 whp on gasoline
• 550 whp on E85
• Up to 1,000 whp on gasoline with a +40% cam upgrade
• Up to 770 whp on E85 with a +40% cam upgrade
• 250-bar operating pressure

Actual achievable power depends on the overall fuel system, calibration, engine configuration, and supporting modifications.

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A True Plug-and-Play Fueling Upgrade

One of the biggest advantages of the DS25 is its installation design. The kit uses OEM-style hose routing and includes a dedicated high-pressure line, allowing the pump to be installed without cutting, bending, or crimping fuel lines.

The complete kit includes:

• Dorch Engineering HPFP with hardware
• Dorch high-pressure line
• PTFE low-pressure line
• Low-pressure hose bracket
• Plug-and-play adapter harness
• Dorch lifetime warranty

The result is a substantial fueling upgrade without turning installation into a custom fabrication project.

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Designed for BMW 1–7 Series B58 Gen1 Applications

The DS25 Gen1 kit is designed for a wide range of BMW 1–7 Series models equipped with the B58 Gen1 engine.

Supported applications include:

BMW 1 Series

• F20/F21 140i / 140xi

BMW 2 Series

• F22/F23 240i / 240xi

BMW 3 Series

• F30/F31/F34 340i / 340xi

BMW 4 Series

• F32/F33/F36 440i / 440xi

BMW 5 Series

• G30/G31 540i / 540xi*

BMW 6 Series

• G32 640i / 640xi*

BMW 7 Series

• G11/G12 740i / 740xi*

*Certain applications are limited to 2019 model year and earlier.

Important: This DS25 Gen1 kit is not compatible with Gen2 B58 vehicles.

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250-Bar Fuel Pressure for Serious Builds

The DS25 isn't simply a higher-capacity replacement pump. Dorch Engineering developed the pump's internal components—including its pressure chamber, spring rates, plunger depth, and volumetric efficiency—to improve fuel flow and performance.

With the ability to operate at 250 bar, the DS25 provides the high-pressure fuel delivery needed to support increasingly powerful B58 configurations and upgraded direct-injection systems.

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Designed for Tuned B58 Builds

The DS25 is particularly valuable for B58 owners running increased boost, upgraded turbochargers, higher ethanol content, or other modifications that place additional demand on the factory fuel system.

Software calibration is required to operate the upgraded pump correctly. For users of Bootmod3, MHD, or MG Flasher, the pump upgrade can be selected as part of the flashing process.

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10% Off the DS25 at XPH

If you're building a high-output B58 Gen1 BMW 1–7 Series, the fuel system needs to be capable of supporting the power you're chasing.

For a limited time, save 10% on the Dorch Engineering B58 Gen1 DS25 HPFP Upgrade at Extreme Power House.

Give your B58 the fueling capacity it needs for the next stage of your build.

Shop the Dorch Engineering DS25 HPFP Upgrade at XPH: https://x-ph.com/dorch-engineering-b58-gen1-ds25-hpfp-upgrade/