BMW F90 M5, F9X M8 & X5M X6M Spool FX-350 S63 High Pressure Fuel Pumps

The Spool FX-350 high pressure fuel pump kit for the Gen 2 BMW S63 delivers about 50% more fuel than the OEM pumps, raising the fueling limit for bigger turbos and E85.

Why you need it

On a tuned S63 the factory pumps become the bottleneck. The FX-350 uses stainless steel construction with a DLC-coated piston and bore, is designed around the S63's dual-pump layout and is rated to 390 bar. Paired with Spool IFX350 Gen 2 DI injectors it forms the base of a big-power DI-only system.

Fits

• BMW F90 M5
• BMW F91 / F92 / F93 M8
• BMW F95 X5 M
• BMW F96 X6 M

Features

• About 50% more fuel than the OEM pumps
• Rated to 390 bar (39 MPa)
• Stainless steel body with DLC-coated piston and bore
• E85 compatible
• Plug and play with lines and hardware included

What's included

• 2 x FX-350 high pressure fuel pumps
• 2 x custom mounting brackets
• Pump alignment tool
• Triple-layer low pressure line
• Plug and play HPFP adapter harness
• Plug and play HPFP hardline
• Spool wireless ethanol analyzer kit (if selected)
• Spool 10-micron filter unit (if selected)

Good to know

Choose at checkout whether to add the Spool wireless ethanol analyzer kit, use one you already have, or skip it. You can also add the Spool 10-micron filter unit. The pump requires calibration changes, and they must be in the tune before you start the car with the pump installed. Spool can share calibration details with your tuner but does not write custom tunes. An upgraded low pressure fuel pump is recommended to avoid cavitation damage. Professional installation is recommended.