Spool FX-170 Upgraded High Pressure Fuel Pump [Gen 1 B58]

Spool FX-170 Gen 1 B58 Upgraded High Pressure Fuel Pump What is the FX-170? The FX-170 is an upgraded high-pressure fuel pump. The pump features a bigger bore size than stock that translates into roughly 50% more flow when compared to stock. The pump is completely E85 compatible and fully plug and play with no cutting or splicing of any kind required. The added flow will let you run much higher ethanol concentrations and also allow fueling for bigger turbos. The FX-170 also is capable of running at 25% more operating pressure than stock pumps helping injectors flow more volume of fuel for the same opening time. Why do you need it The stock HPFP on the B58 motors is severely limited in capacity when trying to tune and raise the output of the motor. The FX-170 adds 50% more flow to the equation, and also lets the injectors flow more, raising the fueling limits on the platform and helping you run bigger turbos and/or higher ethanol concentration blends. What does the kit include? 2 x FX