Your Ranger XP 1000 EPS Tractor 2021 YM is limited to 60-90 km/h. The Electronic Control Unit (ECU) MCECUR21RRW99W will allow you to reach a maximum speed of 64 mph (103 km/h) which will allow you to perform during racing events. This ECU is delivered with a 3 mode option button which allow to get 3 different engines configuration. The mode Work stays limited to 60 km/h