You had me wondering so I went to the update site to see what's, what. They charge $109 for a one-time download and $149 to send it to you on a thumb drive. I do feel this is a little steep. If I'm reading things correctly the price may vary depending upon the year of the vehicle. That seems a little weird to me as well if your SYNC system is up-to-date.
As I mentioned previously this is for my 2017 F-150 and not the Exploder. It may very well only be a $40 charge for the car.