Originally Posted by Chuck33079

Because the data contained within the map is the intellectual property of the tuner. You're free to go have another tuner create a new map, or datalog and email Uprev for an updated map when you add mods.

From their point of view, leaving the map unlocked can only cause problems. You could change something that shouldn't be changed and break something, and complain "Uprev's E-tune destroyed my motor". You could take that data, copy it down and charge someone else with a tuner license to put that data on their car, regardless of whether it's optimized for that car or even safe to run on that car. You could take any competitive advantages or unique strategies they employ and offer them up to anyone.

I'm always surprised when a tuner doesn't lock their tunes. It's not an open source product.