VDO OEM Direct Parts Flex Fuel Sensors are genuine OEM replacement parts, according to Continental Commercial Vehicles & Aftermarket 

They are identical in fit, form, and function as the OE components supplied by Continental to auto manufacturers worldwide.

VDO Flex Fuel Sensors are the latest in green technology for General Motors (GM) vehicles. They calculate the percentage of ethanol in fuel and adjust the output signal to the ECU (engine control unit) creating dynamic ignition timing and E85 gasoline-ethanol blend capability.

They are built in OE ISO/TS certified facilities.