Contents hide 1 2022 Kawasaki KX250 OPTIONAL PARTS 2 OPTIONAL PARTS 2.1 KX FI Calibration Kit 2022 Kawasaki KX250 OPTIONAL PARTS OPTIONAL PARTS Standard equipment KX FI Calibration Kit The KX FI Calibration Kit can change the ECU data set. For the details, consult your authorized Kawasaki dealer.