With this Tune License for your Dynojet Power Vision 3, you can tune an additional Polaris vehicle on the same device. This is perfect for dealers, as well as enthusiasts and families who have multiple Polaris vehicles to maintain. Through a Tune License, you can unlock the true potential of your Dynojet Power Vision 3. Your Power Vision 3 will be able to tune the original vehicle, as well as one additional Polaris. Your Power Vision 3 device will remember each license that is applied, essentially multiplying the power of your device. Each license is vehicle specific, not device specific, allowing you to load a Tune License onto any number of Power Vision 3 units you have. When ordering, please indicate the identifier of your Dynojet account, the license (s) will be transferred to this account .