Spool Helix HPFP Overdrive Unit – BMW N54 / Early N55

Spool Helix HPFP Overdrive Unit uses a planetary gearbox to increase high-pressure fuel-pump shaft speed and displacement volume on BMW N54 and early N55 applications.

Configuration: choose N54 or N55 and whether to include the recommended Helix 10-micron filter unit.

Fitment: N54 and compatible early-N55 HPFP architecture only. Confirm VIN and pump configuration before ordering.

Dispatch: Special order — allow 2–3 weeks.

Confirmed catalogue fitment

• Engine families: N54, N55
• BMW chassis: E60, E61, E82, E88, E90, E91, E92, E93, F01, F02, F10
• Vehicle models: 135i, 335i, 335is, 535i, 740i

Fuel-system selection and installation

Fuel-system parts must be selected around the complete combination of engine generation, fuel type, target output, existing pump and injector configuration, and the calibration strategy. A component appearing for an engine family does not mean it replaces every factory or upgraded fuel-system arrangement used on that engine.

Professional installation and calibration are recommended where the product changes fuel pressure, pump control, injector flow, ethanol-content input or port-injection operation. Confirm wiring, plumbing, electrical load, controller requirements and compatible supporting hardware before ordering.

Before ordering

Select your exact BMW through MLAB My Garage and review the product options, included parts and installation requirements. Where a vehicle has been modified from its original engine, transmission or fuel-system specification, contact MLAB with the VIN and current hardware list so the combination can be checked before supply.

MLAB support

MLAB by Boost and Tune can assist with product selection, workshop installation and dyno calibration for supported BMW applications in Melbourne. Product availability and lead time should be confirmed when ordering supplier-built or special-order components.