[Mjbmw1]

Originally Posted by scotchy

I'm pretty sure even though it is removable, if you have a problem with the motor and they dig into it, they'll find the logs showing repeated requests for boost that exceeds factory parameters, so they'll know something was there.
Personally I've had tunes years ago but haven't on the last few cars. Like was said earlier, if I do I'm assuming my warranty is void and while unlikely, don't want that risk.

I read an article the other day on the X5 (not sure if it was a specific engine/model only) that said the transmission communicates with satellites and adjusts how it works/shifts based on knowing where you are/what street you're on etc. (REALLY??)
If they've this kind of capability, they can find a tune.

https://www.bmwblog.com/2011/04/11/b...ad-conditions/
https://www.bmwblog.com/2011/04/11/b...ad-conditions/