BMW F-Series N55 N20 Stage 2.5 LPFP – Walbro 535 Low Pressure Fuel Pump (650 WHP)

Designed to deliver the fuel volume required for high-boost, ethanol-based, or port-injected BMW builds, this Stage 2.5 Fuel Pump Kit is a complete, plug-and-play low-pressure fuel pump (LPFP) upgrade for N55, N20, and N26 engines. The assembly replaces the OEM fuel bucket with a fully E85-compatible unit featuring a Walbro 535 pump (F90000295). Installation is fully reversible and requires no wiring changes.

Key Features:

• E85-compatible Walbro 535 pump (F90000295)

• Complete replacement fuel bucket with top hat and float assembly

• Includes Walbro filter, fittings, and required hardware

• Direct plug-and-play installation; no wiring modifications required

• Supports up to 650 whp (550 whp on full E85)

Vehicle Fitment

1 Series (F20/F21)

• BMW 116i (N13, 2011–2015)

• BMW 118i (N13, 2011–2015)

• BMW 125i (N20, 2011–2015)

• BMW M135i (N55, 2012–2015)

• BMW M135i xDrive (N55, 2012–2015)

2 Series (F22/F23)

• BMW 220i (N20, 2013–2016)

• BMW 228i (N20, 2014–2016)

• BMW 228i xDrive (N20, 2014–2016)

• BMW M235i (N55, 2014–2016)

• BMW M235i xDrive (N55, 2014–2016)

• BMW M2 (N55, 2016–2018)

3 Series (F30/F31/F34)

• BMW 316i (N13, 2012–2015)

• BMW 320i (N20, 2012–2016)

• BMW 320i xDrive (N20, 2012–2016)

• BMW 328i (N20, 2012–2016)

• BMW 328i xDrive (N20, 2012–2016)

• BMW 335i (N55, 2012–2015)

• BMW 335i xDrive (N55, 2012–2015)

• BMW 335i GT xDrive (N55, 2013–2016)

4 Series (F32/F33/F36)

• BMW 420i (N20, 2013–2016)

• BMW 428i (N20, 2014–2016)

• BMW 428i xDrive (N20, 2014–2016)

• BMW 435i (N55, 2013–2016)

• BMW 435i xDrive (N55, 2013–2016)