BMW Gen2 B58 FX-350 upgraded high pressure pump




  • Brand: Spool Performance
  • Availability: In Stock
  • SKU: SP-B58-FX350-NENF15
  • Barcode: SP-B58-FX350-NENF15

Tags: B58 tu , B58tu , BMW , excluded , fx-350 , FX350 , G-series , Gen2 B58 , M340i , M440i , MX15

Spool Performance is proud to introduce our latest and greatest high pressure fuel pump capable of delivering fuel at 350 bar/ 35Mpa/ 5000psi. The pump features a stainless-steel construction with high tolerance DLC coated piston and bore. The pump is engineered to deliver the same volume as our FX200 pumps but at 350 bar pressure. The output is further increased by our Spool Performance Gen2 High lift cam lobe mod . The plunger springs have been specially engineered to be compatible with the cam lobe mod and limits float at high rpms even with increased lift from the cam mod.

The FX-350 coupled with our IFX150 Gen2 DI injectors is the long-awaited missing piece in the puzzle for DI only big power on the Gen2 BMW high pressure fuel system.

The FX-350 is truly Plug and Play for all platforms we are offering and comes with all the lines and hardware needed for a clean easy install.

As usual, we stand behind our high quality offerings and this product is eligible for our lifetime warranty program.

Tuning changes are required to run the fuel pump and we’re in the process of adding these to the different flashing platforms. Meanwhile our team can assist with adding the required changes to tune files.

Fueling Capabilities with HPFP alone:

Gasoline           800whp

E50 Mix             670whp

E85                     600whp  

Fueling Capabilities with HPFP + IFX150 Gen2 injectors:

Gasoline           900whp

E50 Mix             740whp

E85                     660whp  

Fueling Capabilities with HPFP + IFX150 Gen2 injectors+ Spool Cam lift Mod:

Gasoline           1050whp

E50 Mix             950whp

E85                     800whp  

What’s included:

Spool Performance FX-350 High Pressure Fuel Pump

Mounting Bracket

Pump alignment tool

Triple Layer Low Pressure Line [Nylon over Stainless steel over PTFE]

Plug and Play HPFP Adapter Harness



G42 – M240i, M240xi

G43 – M240i, M240xi

G20 – M340i, M340xi

G21 – M340i, M340xi

G22– M440i, M440xi

G23– M440i, M440xi

G26– M440i, M440xi

G30 – 640i, 640xi 

G31 – 540i, 540xi 

G05 – X5 40i

G06 – X6 40i

G07 – X7 40i

G01 – X3 M40i 

G02 – X4 M40i 

G29 – Z4 M40i

G32 – 640i, 640xi 

G11 – 740i, 740xi 

G12 – 740i, 740xi 

G15 – 840i, 840xi

G16 – 840i, 840xi


Note: Proper low pressure fueling is critical to proper normal functioning of the HPFP. Although our pumps are covered by our lifetime warranty program as usual, any damage due to cavitation induced damages to the piston/bore would be excluded from coverage. Please make sure you are running an upgraded low pressure fuel pump to ensure adequate pressure delivery to the FX-350 pump.


Tags: BMW, FX350, M340i, M440i, HPFP

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