This GM flex fuel sensor measures the ethanol-gasoline ratio of the fuel being used. In order to adjust ignition timing and the fuel quantity to be injected, the engine management system requires information about the percentage of ethanol in the...

This is a GM Flex Fuel sensor with a custom made harness. This is ideal for people who don't need the plumbing side of things because they're using an aftermarket fuel system or just want to do things their own way.  When checking out, select...

The DSX Tuning flex fuel kit is the original plug and play solution to adding flex fuel on Gen IV/Gen V GM V8 vehicles.  Use these kits to add the ability to run anywhere from straight gasoline to straight ethanol as well as reveal the true...