High Pressure Fuel Pump (HPFP) Upgrades

High pressure fuel pump upgrades from Spool Performance. The HPFP feeds the direct-injection rail, and these kits replace the factory pump with Spool FX-200 or FX-350 units for builds that need more fuel than the stock...

43 tools

Skip to results list
43 items

Filter

About High Pressure Fuel Pump (HPFP) Upgrades

High pressure fuel pump upgrades from Spool Performance. The HPFP feeds the direct-injection rail, and these kits replace the factory pump with Spool FX-200 or FX-350 units for builds that need more fuel than the stock pump supplies.

Listings cover BMW N20/N26, N55, B46/B48, B58 (Gen 1 and Gen 2), S58 and S63, Mercedes-AMG M133, M157, M177, M178, M256 and M276 engines, the Audi RS6, RS7 and RS Q8, Lamborghini Urus, Porsche 992 Turbo, Cayenne Turbo and Panamera Turbo, and the Aston Martin Vantage V8. The Spool Helix HPFP overdrive unit is here too. Match the engine and generation in the title before ordering.

For pumps, analyzers and lines together, see fuel system upgrades or the Spool Performance range.

Frequently asked questions

What does a high-pressure fuel pump upgrade do?

The engine-driven HPFP raises fuel from the low side to the very high pressure a direct injector needs. An upgrade raises that ceiling so a tuned engine keeps rail pressure under load. Some engines, such as the S58 and the AMG M177, use two pumps, and their kits include two.

What do FX-200 and FX-350 mean?

Spool names its high-pressure pumps for their pressure rating. The FX-200 is the earlier design, with a larger bore than stock. The FX-350 is the newer, higher-pressure design; most listings quote 350 bar, and it uses stainless construction with a DLC-coated piston and bore. Both are described as E85 compatible.

Can I fit an upgraded HPFP without a tune?

No. The Spool FX-350 listings for the B58 and S58 state that tune changes or a supporting tune are required, and an upgraded pump cannot be used to its potential without one. Many kits are described as plug-and-play to install, but plan the calibration with your tuner before the parts go in.

Do I need an LPFP upgrade too?

Often, yes. A stronger HPFP cannot make up for a low side that cannot feed it, and the Spool FX-350 listings recommend an upgraded LPFP alongside them. Log fuel pressure on both sides: low-side pressure falling first points to the LPFP. Big builds and ethanol blends usually need both. See our HPFP vs LPFP guide.

Are these pumps E85 compatible?

The Spool FX listings describe them as E85 compatible. Ethanol needs noticeably more fuel volume than gasoline, so pair the pump with an ethanol analyzer so you know what is in the tank, and check whether the kit lets you add one at checkout.