Upgrade your BMW F-Series N55 or N20 fuel system with the OneFastShop Stage 2 Low Pressure Fuel Pump (LPFP) assembly. This drop-in replacement swaps the restrictive OEM fuel bucket for a complete E85-compatible unit built around the proven Walbro 450 (F90000274) pump - delivering the fuel volume needed to support up to 575 WHP on pump gas or 500 WHP on full E85. Direct replacement for BMW OEM part #16117243975, with plug-and-play installation and zero wiring modifications required.
Key Features
- E85-compatible Walbro 450 pump (F90000274)
- Supports up to 575 WHP on pump gas / 500 WHP on full E85
- Complete OEM-replacement fuel bucket with top hat and float assembly
- Plug-and-play installation - no wiring modifications, soldering, or ECU changes
- Ships fully assembled and ready to install
- Includes Walbro filter, fittings, and O-ring
- Ideal for Stage 2+ tunes, methanol injection, and ethanol blends
- Direct replacement for BMW OEM #16117243975
Fitment
| Year |
Make |
Model |
Chassis |
Engine |
| 2014-2016 |
BMW |
228i / 228i xDrive |
F22 / F23 |
N20 |
| 2014-2016 |
BMW |
M235i / M235i xDrive |
F22 / F23 |
N55 |
| 2016-2018 |
BMW |
M2 |
F87 |
N55 |
| 2013-2016 |
BMW |
320i / 320i xDrive |
F30 |
N20 |
| 2012-2016 |
BMW |
328i / 328i xDrive |
F30 / F31 |
N20 |
| 2012-2015 |
BMW |
335i / 335i xDrive |
F30 / F31 |
N55 |
| 2014-2016 |
BMW |
328i GT xDrive |
F34 |
N20 |
| 2014-2016 |
BMW |
335i GT xDrive |
F34 |
N55 |
| 2014-2016 |
BMW |
428i / 428i xDrive (incl. Gran Coupe) |
F32 / F33 / F36 |
N20 |
| 2014-2016 |
BMW |
435i / 435i xDrive (incl. Gran Coupe) |
F32 / F33 / F36 |
N55 |
Specifications
| Part Number |
N55STG2FP |
| Pump |
Walbro 450 (F90000274) |
| OEM Replacement |
BMW #16117243975 |
| Max Power Support |
575 WHP (pump gas) / 500 WHP (E85) |
| Fuel Compatibility |
91-93 octane, E85, ethanol blends, methanol injection |
| Installation |
Plug-and-play, no wiring required |
What's in the Box
- Complete fuel bucket assembly with Walbro 450 pump pre-installed
- Top hat and float assembly
- Walbro fuel filter
- Fittings and O-ring
