This simple device plugs into your air temp sensor, located on the bottom of the airboot. Because these bikes have O2 sensors, they respond different to things than no O2 bikes. This increases fuel from idle to about 7000 RPM on the 20-21 bikes. You must use our high pressure fuel regulator with this, for good fuel at all RPM's, unless the bike is stock 

Booster Plug for 20-22 EXCF/XCFW/FE-S/FE

$159.95Price