Dorch Engineering BMW B58 Stage 1 and Stage 2 High Pressure Fuel Pump Upgrade HPFP for M140i M240i 340i 440i - F20 F21 F22 F30 F31 F32 F36
Unlock reliable power and fuelling headroom on your BMW B58 with the Dorch Engineering High Pressure Fuel Pump upgrade. This proven HPFP is a true plug-and-play, direct replacement for the OEM pump, retaining full DME control and factory safety logic. Ideal for performance builds, hybrid turbos and ethanol blends, it delivers the high pressure fuel flow your B58 needs for consistent, knock-resistant power.
Perfect for BMW M140i M140i xDrive, M240i M240i xDrive, 340i 340i xDrive and 440i 440i xDrive owners looking for a B58 HPFP upgrade in the UK. Nforcd customers have had excellent results with this kit on tuned street cars and track cars alike thanks to its OEM-like drivability and robust flow capacity.
Why choose the Dorch Engineering B58 HPFP upgrade
- Plug-and-play installation - no cutting, bending or crimping
- Full DME integration - keeps all OEM safety and control strategies
- Substantial flow increase over stock B58 HPFP for reliable fuelling on tune and ethanol
- Supports serious power targets with proper calibration
- Quality hardware with Dorch Engineering Lifetime Warranty
Stage options and power capability
Stage 1 - Part number DE-58-1001
Supports up to ~600 whp depending on tuning strategy and ethanol blend. True drop-in with OEM-like behaviour and increased flow to keep rail pressure stable on aggressive pump petrol or mixed ethanol maps.
Stage 2 - Part number DE-58-2001
Bigger, higher-flow version of Stage 1 for more demanding setups. Supports up to ~700 whp and allows full E85 up to ~550 whp, subject to calibration, fuel quality and hardware combination. Also plug-and-play with full DME control.
Measured flow capacity reference
The figures below show maximum fuel flow per camshaft revolution on the B58 cam lobe. Actual results vary by engine and cam design.
| Pump model | Fuel flow (cc per cam rev) |
|---|---|
| HDP5 Evo - Stock B58 | 0.954 |
| HDP6 - Stock B58TU | 1.178 |
| Dorch Engineering Stage 1 | 1.299 |
| Dorch Engineering Stage 2 | 1.558 |
Software and tuning
Software changes are required to run this HPFP. If using MHD or Bootmod3, simply select the Dorch pump upgrade option when flashing. Otherwise, email your .BIN file to tuning@dorchengineering.com for the correct calibration changes. This service is free of charge for Dorch customers.
For full E85 on B58, Stage 2 is recommended. Stage 1 full E85 is tuner dependent.
What is included
- High Pressure Fuel Pump with hardware
- High pressure line
- Quick connect low pressure line
- Low pressure line bracket
- Plug-and-play adapter harness
Compatibility - Gen 1 B58 only
Fits the following BMW chassis and models with the first-generation B58 engine:
- F20 - M140i, M140i xDrive
- F21 - M140i, M140i xDrive
- F22 - M240i, M240i xDrive
- F30 - 340i, 340i xDrive
- F31 - 340i, 340i xDrive
- F32 - 440i, 440i xDrive
- F36 - 440i, 440i xDrive
If your B58 model is not listed, please contact info@dorchengineering.com for fitment information.
Fitting and installation
Professional installation is recommended. Nforcd offers fitting and in-house tuning support in Warwickshire. Request a quote at Sales@nforcd.com.
Compatibility check before dispatch
To ensure the correct part for your car, we verify compatibility before shipping. Please provide your UK registration or the last 7 digits of your VIN at checkout.
Manufacturer and warranty
Manufactured by: Dorch Engineering
Warranty: Dorch Engineering Lifetime Warranty
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Part numbers: DE-58-1001 Stage 1, DE-58-2001 Stage 2