Air and Fuel Fuel Pumps, Regulators and Components

Spool Performance

FX-150 High-Pressure Fuel Pump Kit

$3,499.00

SKU: SP-FX-N63

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Spool Performance FX-150 is an upgraded high-pressure fuel pump kit for BMW N63 engines. This kit is designed to increase fuel supply capacity by approximately 50 percent over stock units. It supports high ethanol content fuels, including E85, and ensures stable rail pressure under heavy load.
Show original supplier description
The Spool Performance FX-150 Twin HPFP Upgrade Kit is engineered to significantly enhance the fueling capabilities of BMW's N63 engine. This kit provides a substantial increase in fuel supply capacity, approximately 50 percent greater than factory pumps, offering crucial headroom for performance tuning. It is designed to maintain stable rail pressure even under demanding conditions, such as high RPM and boost levels often encountered with Stage 2 and big turbo calibrations. Constructed with ethanol-safe internals, this kit is fully compatible with high-ethanol blends like E85 and E50, as well as other flex-fuel mixtures. The system includes two upgraded FX-150 direct injection pumps, an Ethanol Content Monitor with Bluetooth app support for real-time fuel percentage and temperature readings, and a high-flow 10-micron Bosch-spec fuel filter to protect critical components. Upgraded fuel lines and all necessary installation hardware are also provided, facilitating a true plug-in installation with OE-style connectors and pre-made lines. Calibration updates are a required post-installation step. Spool Performance can provide calibration data to your tuner or recommend mappers familiar with the FX-150 platform. The kit is specifically designed for BMW models utilizing the N63 engine, including various 5 Series (F07, F10, F11), 6 Series (F12, F13), 7 Series (F01, F02, F03, F04 Hybrid), 8 Series (G14, G15, G16), and X Series (E70, F15, G05, E71, F16, G06, E72 Hybrid) variants equipped with the 50i designation or Alpina B7 models. Professional installation and setup services are available through authorized partners, and fitment can be verified prior to dispatch using your vehicle's registration or VIN.
Vehicle Symptoms
  • Loss of power under heavy acceleration
  • Fuel starvation at high RPM
  • Rough idle or hesitation when cold
  • Check Engine Light with fuel pressure codes
  • Engine misfire under boost
Diagnostic Codes
  • P0191 – Fuel Rail Press Snsr A Ckt Range/Perf
  • P0300 – Random or multiple cylinder misfire Det
  • P0171 – FT Malf (B1)
  • P0174 – FT Malf (B2)
  • P0190 – Fuel Rail Press Snsr A Ckt
Relevant Conversations
  • N63 high pressure fuel pump upgrade
  • FX-150 HPFP kit review
  • E85 fuel system N63
  • N63 low fuel pressure code P0191
  • Spool Performance FX-150 install
  • N63 stage 2 fuel pump upgrade
  • N63 misfire after tune
  • FX-150 vs stock HPFP
  • N63 fuel pump for big turbo
  • N63 fueling upgrade E85

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandSpool Performance
Part NumberSP-FX-N63
CategoryAir and Fuel

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