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Spool Performance Stage 3 low-pressure fuel pump for BMW S58
SPOOL PERFORMANCE

Spool Performance Stage 3 Low-Pressure Fuel Pump — S63 / S63TU

$815.00

Spool Performance Stage 3 low-pressure fuel pump for the S63 and S63TU — the in-tank side that keeps a Stage 3 V8 build fed. The factory in-tank (low-pressure) pumps run out of duty on E85 and high boost, and rail pressure drops up top. Spool's Stage 3 adds a boost-activated secondary pump, roughly doubling low-pressure flow.

What it is

A twin-pump in-tank upgrade that switches on the second pump under boost (boost/Hobbs-switch activated) — cruise stays factory-quiet, the system only ramps when you're on it. Spool rates it to support 1,200+ whp. Pick your chassis above: the earlier S63TU M5/M6 (F10/F12/F13) and the Gen2 S63 M5/M8 (F90/F9x) use different assemblies and price accordingly.

Where it fits in the build

Low-pressure (in-tank) side; pairs with an upgraded high-pressure (DI) pump so the HPFP is never starved. We tune the engine to the fuel system.

Fitment

S63 / S63TU — F10 M5, F06/F12/F13 M6 (S63TU); F90 M5, F91/F92/F93 M8 (Gen2 S63). Confirm your chassis in the selector.

Sourcing fueling with the tune? The Fueling Kit — S63 bundles the matched parts + calibration for 8% under à la carte.

Fits engine S63
Fits chassis F10 · F06 · F12 · F13 · F90 · F91 · F92 · F93
Category Fuel
Manufacturer Spool Performance

Ships from Boca Raton, FL.

WHY WE SHIP SPOOL PERFORMANCE
Spool Performance builds high-pressure fuel pumps for the builds that have outrun what the factory pump can flow. On a big-power direct-injection BMW, fuel supply is often the actual ceiling, and the engine will pull rail pressure long before it runs out of airflow. We ship Spool because their HPFP upgrades are aimed squarely at that ceiling, restoring the supply margin a high-output calibration depends on. This is upper-end fueling hardware — the part you add when the dyno shows the pump, not the turbo, is what is holding the number back.