COBB Tuning CAN Flex Fuel Upgrade (SKU 3F2650)
Fits 2017-2020 Raptor
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A flex fuel sensor kit that lets the ECU read ethanol content so the truck can run E85 blends safely.
why this one — COBB's cited dyno, run with this kit plus an Accessport Stage 2 tune and other bolt-ons, went from 447 whp/565 wtq on E10 to 514 whp/595 wtq on E50 - that is a bundled-build result, not the sensor kit's gain by itself.
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.
Gain shown is a independent test, not a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See our affiliate disclosure.