When you upgrade a motor you usually need to change or modify your gearing for more durability and / or to get the right gear ratio. MLToys has tested a variety of motors and gearing combinations to come up with these Performance Packages that give your ride more speed and more off-road torque.
Please read our How to Start Modifying Guide and Staged Upgrades Explained Guide before making your selection.
Having trouble finding the right motor/gears for your car? Use the 'filter' options or go to the Upgrades by Vehicle section.