Assembled in house, this 8 foot harness was created at USP Motorsports to complement some of the Ethanol Content Analyzers on the market. Using an OEM 3 pin E85 Flex Fuel sensor plug, this harness comes fully pinned with high quality, durable PET shield to prevent damage to the wires. Simply plug our harness into the Flex Fuel sensor and run the wires into the cabin to hookup to the gauge of your choice.