An additional VIN License is needed ONLY if you plan on tuning more than one truck with your Smarty MM3 Tuner OR if you have purchased a used MM3 Tuner. There are 4 total VIN slots on a standard MM3 and new units come with one VIN license included.
Be sure you have an open VIN slot on your MM3 tuner before purchasing a VIN license to go in that slot.
Note: You will also need tunes written specifically for your truck, the new vin license will not allow you to use pre-existing tunes from another vehicle on the new vehicle.
VIN Licenses are not refundable.
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