Quote:
Originally Posted by nearwater4me
I thought the current ‘20 M2C’s DME are locked and cannot be tuned easily like the previous MY’s. 
Then there’s the warranty issue  |
They are all locked. It's just that after 3/2019 production they have a new bootloader installed that prevents unlocking at home through the OBD port. The DME can be sent in for a bench unlock with a 3 day turnaround. Then you can flash tunes all day long. The M4 CS tune is particularly attractive since it is basically a BMW tune with all the safeguards along with it. ZOOM!
The car can be flashed back to the stock original tune from home at will.