The car analogy has been raised, and I did wonder about this myself.

Isn't the case in point similar to buying an aftermarket engine-chip-box-mod-thingy? Wouldn't such remapping devices have to be derived from the existing electronic engine management code to enable them to slot in and work as they do?

Although you clearly install such engine mods at your own risk, are car manufacturers relentlessly pursuing the accessory makers for producing such devices? is there legal precedent for car manufacturers taking action against modification companies for these tuning kits?

Cheers

George