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• catback exhaust system
Full-coverage shot peening treatment
These ignition coils are suitable for Stage 1 to Stage 3 setups
Designed for a perfect fit and optimum performance
Volledig afgesloten hitteschild voor lagere inlaattemperaturen
Spool - Helix HPFP Overdrive Unit – BMW 135i / 335i E8x / E9x N54 / N55 Including Helix 10 micron filter unit (recommended)*:No • catback exhaust systemThe 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.
