Spool FX-170 Upgraded High Pressure Fuel Pump System | AMG GT63 AMG [M177] m157 and the second activates seamlessly

and the second activates seamlessly during boost onset

Spool Performance can provide calibration details to your existing tuner and/or help you connect with established tuners who are experienced with these pumps

Highly recommended for any build

particularly in scenarios requiring substantial fuel volumes such as upgraded HPFP and turbo applications

Spool FX-170 Upgraded High Pressure Fuel Pump System | AMG GT63 AMG [M177] m157 and the second activates seamlesslySpool Performance FX 170 High pressure fuel pump upgrade 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