Modern standalone ECUs have the capability to run E85 with no hassle. Simply dump in any mixture of E85 and gasoline. The ECU can read ethanol content from this sensor, then automatically adjust fueling, boost, and timing.

Includes sensor, wiring harness, and fittings. We do not offer a bracket, as it's best to isolate these from engine vibrations. We most frequently mount this directly to a fuel pressure regulator on top of the fuel filter, or hang it in the return line with stock fuel system plumbing.