Spool - Helix HPFP Overdrive Unit – BMW 135i / 335i E8x / E9x N54 / N55 Engine:N55 fewer misfires and a striking

fewer misfires and a striking red design

Suitable for high-horsepower engines•

Secure with a hose clamp to ensure a 100% airtight seal

4 times the frontal area of the standard Intercooler and 2

2x billet aluminium adjustable rods

Spool - Helix HPFP Overdrive Unit – BMW 135i / 335i E8x / E9x N54 / N55 Engine:N55 fewer misfires and a strikingThe Spool performance Helix HPFP Overdrive Unit has been developed for BMW N54 and early N55 engines to significantly increase the capacity of the original high pressure fuel pump (HPFP). By increasing the HPFPs rotational speed, the volume of fuel delivered is increased, thereby preventing pressure drops at higher power outputs. This provides an effective solution for high power builds without the complexity of additional port injection systems.