Here
we have the components removed from an s55 engine that you will need to
convert your N55 engine to dual high pressure fuel pumps to achieve
600+ hp removed from a low mileage 2017 M4 with only 18,000 miles, All
the major components needed to retrofit your later model N55 BMW
F-Chassis with the single Bosch HPFP to the S55's dual arrangement.
Fueling support for 600whp+ on straight E85. Can be adapted to any
F-Chassis car that uses an existing single BOSCH HPFP with adequate
tuning.