Spool FX-170 Upgraded High Pressure Fuel Pump System | GLC63 AMG [M177] Ethanol Analyzer kit:I would not be installing an Ethanol Content Analyzer Running a lower ethanol content

Running a lower ethanol content fuel with a tune rated for a higher content can cause damage to your motor

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Spool FX-170 Upgraded High Pressure Fuel Pump System | GLC63 AMG [M177] Ethanol Analyzer kit:I would not be installing an Ethanol Content Analyzer Running a lower ethanol contentSpool 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