Dorch Engineering DS25 High Pressure Fuel Pump (HPFP) - BMW F20 M135i | F22 M235i | F30 335i | F32 435i | F87 M2 (N55)

The Dorch Engineering DS25 is the "Stage 2.5" high pressure fuel pump for the N55, replacing the hugely successful DS2. Completely redesigned with a reworked pressure chamber, spring rates and plunger depth, it is Dorch's most reliable and highest flowing N55 pump yet.

Built to run efficiently at up to 250 bar to maximise the potential of upgraded direct injectors, the DS25 drops straight in with full DME control and all the factory safety strategies retained. Updated packaging gives improved hose routing for an even easier installation, and a 250 bar hardline is included.

Please note:

• Software changes are required to run this pump. MHD and Bootmod3 users can simply select the Dorch pump upgrade when flashing; otherwise a custom WinOLS calibration will be needed.
• Only suitable for 2013-on N55 engines with the OE Bosch HPFP – not compatible with 2011–2012 N55 vehicles.
• For power beyond the DS25 alone, it can be paired with the Dorch N55 Lift Kit (sold separately).

Features

• DS25 flow potential: up to 750whp on petrol / 550whp on E85
• With +38% N55 Lift Kit: up to 900whp on petrol / 690whp on E85
• With +49% N55 Lift Kit: up to 1000whp on petrol / 770whp on E85
• 250 bar operating pressure
• 100% plug and play OEM fitment – no cutting, bending or crimping
• Kit includes: Dorch HPFP with hardware, Dorch high pressure line, PTFE low pressure hose and plug and play adapter harness
• Dorch Engineering lifetime warranty
• Backed by Dorch Engineering's in-house calibration engineer and technical support

Fitment

• BMW F87 M2 (N55)
• BMW F20 / F21 M135i (inc. xDrive)
• BMW F22 / F23 M235i (inc. xDrive)
• BMW F30 / F31 / F34 335i (inc. xDrive)
• BMW F32 / F33 / F36 435i (inc. xDrive)
• BMW F10 / F11 535i (inc. xDrive) *
• BMW F25 X3 35i / F26 X4 35i *
• BMW F15 X5 35i / F16 X6 35i
• BMW E82 / E88 135i (N55) *
• BMW E90 / E91 / E92 / E93 335i (N55) *
• BMW E84 X1 35i *
• BMW E70 X5 35i / E71 X6 35i *

* 2013-on models fitted with the OE Bosch high pressure fuel pump only. Not compatible with 2011–2012 N55 vehicles.