Spool FX-170 Upgraded High Pressure Fuel Pump System | [M133] Ethanol Analyzer Option:Do Not Include Ethanol Analyzer - I have existing Spool Ethanol Analyzer installed providing ample fuel supply for

providing ample fuel supply for advanced direct injection systems

while the secondary pump is programmed to activate during boost

be only E55 containing 55% ethanol

The upgraded pumps do require calibration changes

developed specifically for the Mercedes-AMG M276 platform

Spool FX-170 Upgraded High Pressure Fuel Pump System | [M133] Ethanol Analyzer Option:Do Not Include Ethanol Analyzer - I have existing Spool Ethanol Analyzer installed providing ample fuel supply forSpool 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