Gen 1 BMW B58 High Pressure Fuel Pump (HPFP) Upgrade Platform:M140i M240i M340i M440i Pre-assembled with genuine Walbro 535

Pre-assembled with genuine Walbro 535 pump

This kit includes a custom time saving plug and play harness that enables factory paddle shift without cutting

Dramatic Sound Improvement: Enjoy an incredible enhancement in sound

Peak gains 40whp

Bmw 428i (2014 to 2016)

Gen 1 BMW B58 High Pressure Fuel Pump (HPFP) Upgrade Platform:M140i M240i M340i M440i Pre-assembled with genuine Walbro 535Unlock the true potential of your BMW with the Gen 1 B58 High Pressure Fuel Pump (HPFP) Upgrade from Fuel It! This high capacity upgrade replaces your factory HPFP, delivering up to 30% more flow with Stage 1 and an impressive 60% more flow with Stage 2, ensuring your engine performs at its peak. Features Complete Installation Kit: Includes all necessary hardware for a clean, plug and play installation. Performance Options: Select between "Stage 1" or