This simple device plugs into your air temp sensor, located on the bottom of the airboot. This increases fuel by the amount of 6%, at all RPM's, on the 17-19 bikes. If you are worried about adjusting the TPS on these bikes, for whatever reason, now you don't. This is a bullet proof device that has proven to work great with our end cap or open exhaust. If removing reeds in the intake and adding our intake tube, you must use the high pressure fuel regulator as well, for good fueling. This works best with the tps set at .50

Booster Plug for 17-19 EXCF/FE-S