Spool Performance FX-150 Twin HPFP Upgrade Kit for BMW M5/M6 S63 S63TU (F10 F90 F06 F12 F13) – High Pressure DI Fuel Pump Pair, Plug & Play Drop-In, E85 Flex Fuel Safe, +50% Flow – Rail Pump/Fuel System Upgrade for Hybrid & Big Turbos

FX-150 uprated direct injection pump kit for BMW M5 and M6 S63

Unlock consistent rail pressure and headroom for bigger power on the S63 platform with the Spool Performance FX-150 twin high-pressure pump set. This drop-in DI upgrade delivers around 50 percent more capacity than the factory units, is fully ethanol safe for E85 and blends, and installs with OEM-style connectors for a clean, hassle-free fit. Ideal for hybrid and larger turbo builds where dependable fuelling is essential.

Why this FX-150 kit is the fuelling upgrade your S63 needs

• Approx. plus 50 percent flow over stock to relieve the S63 fuelling bottleneck when raising boost or running ethanol blends.
• Ethanol ready for E85, E70, E60 and flex-fuel use with stable rail pressure and smooth drivability.
• Direct-fit installation with factory-style fittings. No wiring changes, no cutting hardlines, no splicing.
• Supports aggressive calibrations and larger turbochargers by increasing high-side capacity in the direct injection system.
• Engineered specifically for BMW M5 and M6 models equipped with the S63 engine family.

Fitted by our team at MJ Modifications and used on customer builds, this setup has proven reliable with excellent pressure stability under load. Owners consistently report improved fuelling headroom, clean cold starts and OEM-like refinement even on high ethanol content.

What you get in the box

• 2 x FX-150 uprated high-pressure pumps for the S63
• 1 x Ethanol content monitor with companion mobile app for live percentage and fuel temperature
• 1 x Bosch spec 10 micron high-flow fuel filter to protect injectors and pumps
• Upgraded fuel lines plus all required hardware for a neat, factory-style install

Protection and monitoring built in

The included 10 micron filtration offers market-leading protection with negligible low-side restriction, helping keep injectors and the high-pressure system free from debris. The ethanol content analyser provides real-time blend data via Bluetooth in the companion app, making it simple to verify your fuel mix before a pull or dyno session.

Installation and mapping

Calibration changes are required after fitting. Your tuner can work with the pump data provided by the manufacturer to dial in rail pressure targets and fueling on your chosen software. For professional installation, book with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

Vehicle compatibility

• BMW M5 F10 saloon S63 2010 to 2016
• BMW M5 F90 saloon S63 2016 onwards
• BMW M6 F06 Gran Coupe S63 2011 onwards
• BMW M6 F12 convertible S63 2011 onwards
• BMW M6 F13 coupe S63 2011 onwards

Pre-dispatch fitment check

We will verify fitment using your UK registration or the last 7 of your VIN before shipping. Add your vehicle details at checkout so we can confirm compatibility for your M5 or M6.

Part number

SP-FX-S63

Manufacturer

Spool Performance

Fitting and support

Prefer a turnkey service. MJ Modifications is based in Warwickshire and can supply, install and support this fuelling upgrade, as well as arrange mapping with experienced calibrators. Email info@mjmodifications.co.uk to schedule your car.

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