Dorch Engineering BMW G Series B58TU GEN2 DS3 High Pressure Fuel Pump (HPFP)

The Dorch Engineering BMW G Series B58TU Gen 2 DS3 High Pressure Fuel Pump is the most advanced and highest-flowing single-pump direct injection fuelling solution currently available for the B58TU platform. Developed after extensive R&D, the DS3 (Dorch Stage 3) features Dorch’s largest bore and highest flowing pump design to date, delivering approximately 20% more fuelling capacity than the DS25, while retaining full OEM-style integration and reliability.

Operating at 350 bar, the DS3 is a true OEM drop-in upgrade that requires no cutting, bending or modification. It installs directly in place of the factory pump and maintains full DME control, ensuring all factory safety strategies remain intact. Capable of supporting extremely high power levels on petrol and ethanol blends, the DS3 forms the backbone of serious B58TU builds where maximum direct-injection fuelling headroom is required.

When paired with upgraded injectors and one of Dorch’s camshaft solutions, the DS3 enables four-digit power capability on direct injection alone, making it the ultimate single-pump solution for high-output street and competition applications.

Performance Specifications

DS3 (Standard Cam)

• Petrol: up to 950 whp

• E50: up to 800 whp

• E85: up to 700 whp

• Operating pressure: 350 bar

DS3 with +27% Cam Upgrade

• Petrol: up to 1150 whp

• E50: up to 1000 whp

• E85: up to 870 whp

• Operating pressure: 350 bar

Key Features

• Highest flowing single HPFP available for B58TU Gen 2 engines

• 350 bar operating pressure for extreme fuelling headroom

• Approx. 20% more flow than DS25

• True plug-and-play OEM-style fitment

• Retains full DME control and factory safety logic

• Supplied with Dorch 350 bar high pressure hardline

• PTFE low pressure fuel line and mounting hardware included

• Plug-and-play adapter harness

• Backed by Dorch Engineering lifetime warranty

Tuning & Injector Requirements

Software calibration is mandatory to operate the DS3 HPFP correctly. Bootmod3 and MHD support is available via selectable pump options where supported, with custom WinOLS calibration also supported.

Due to the DS3’s extreme flow capability, larger injectors are required to take full advantage of this pump. While S58 injectors pair well with the DS25, they are not sufficient to fully utilise the DS3’s potential. Injector upgrades are strongly recommended for high-power ethanol or hybrid turbo applications.

Kit Contents

• Dorch DS3 High Pressure Fuel Pump with hardware

• Dorch 350 bar high pressure fuel line

• PTFE low pressure fuel line

• Low pressure hose bracket

• Plug-and-play adapter harness

• Dorch Engineering lifetime warranty

Compatibility (Gen 2 B58TU Only)

• Toyota A90 / A91 Supra

• BMW G29 Z4 M40i

• BMW G42 / G43 M240i, M240i xDrive

• BMW G20 / G21 M340i, M340i xDrive

• BMW G22 / G23 / G26 M440i, M440i xDrive

• BMW G30 / G31 540i, 540i xDrive *

• BMW G32 640i, 640i xDrive *

• BMW G11 / G12 740i, 740i xDrive *

• BMW G15 / G16 840i, 840i xDrive

• BMW G05 X5 40i

• BMW G06 X6 40i

• BMW G07 X7 40i

• BMW G01 X3 M40i *

• BMW G02 X4 M40i *

* Gen 2 B58TU-equipped model years only

Designed for those pushing the limits of the B58TU platform, the Dorch DS3 HPFP delivers unmatched single-pump fuelling capacity while preserving OEM-level integration, reliability and long-term support.

EU Part Number: DEN-FUP-B58-037

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

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