Flex Fuel Kit — Universal / Any ECU

The standalone version, for any ECU with a flex fuel or frequency input — aftermarket, swapped, or anything outside the GM platform list.

• In the box: OEM GM ethanol content sensor (Continental), braided stainless fuel line and adapter, install harness, fuel line disconnect tool, and wiring instructions.
• How it signals: Sends a frequency signal to your ECU’s flex fuel input. This kit is not plug-in on a standalone ECU — wiring follows your ECU’s documentation, since pinouts vary by system.
• Fits: Any standalone or aftermarket ECU that accepts an ethanol content signal. Confirm your year and PCM with the vehicle picker before ordering.
• Reversible: it is a sensor and a signal harness. The hardware comes back out and the calibration returns to straight gasoline whenever you want.
• Also required: flex fuel has to be configured in your ECU. This kit is the hardware only.

Sold for off-road / competition-use vehicles only.