Fuel-It! Bluetooth Flex Fuel Kit
Fits 2015-2020 3.5L EcoBoost
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gain
supports added power
price
$419.95
install
2/5 difficulty · ~30 minutes per Fuel-It
A Bluetooth-enabled ethanol content sensor kit that reads the fuel's ethanol percentage for a supporting ECU or tune, letting the truck run E85 blends safely.
heads up
Fuel system hardware is not itself an emissions-control component, but running on E85/high-ethanol blends requires supporting tune changes - verify local fuel regulations and powertrain warranty impact before installing.
pairs well with
Gain shown is a no published number, not a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See our affiliate disclosure.