Electronic Controller Reprogram

Let's Face it: You want the most out of your GEM car. This Upgrade will squeeze every bit of performance out. A Controller reprogram will allow you to tune your GEM car to your specific terrain. While, the default tune is good for general use, you will want different characteristics depending on whether you have lots of hills to climb, plan on towing, or you just want top end speed. The controller upgrade is a must if you purchase the 7.5hp engine or upgrade the wheels.

(This Upgrade requires you to send in your Controller.)