Quote:
Originally Posted by Dyleth
I recently purchased a ‘21 M340i and I absolutely love it. It’s my first BMW and I’m very impressed so far. With that being said, what are my options for tuning capabilities? I’ve read that ‘21+ is locked and a flash tune isn’t capable unless you ship the unit to Finland or Russia, and I’m also not completely sold on a piggyback. Does anyone know if there will be an easier flash tune method down the road? I’m not impatient, but I would like to have an idea if it’s even possible. If not and I have to go the piggyback route, what are the downsides to this method? I plan on keeping the car mostly stock. Maybe a DP down the road but that’s about it. Any insights on this will be greatly appreciated!
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IMO the short answer is no. Unless one gets the encryption keys, it's not getting unlocked. Femto has them, and therefore is your only option. From what I can tell, it's safe and they are reliable. You just have to decide it's worth it and to live without your car for a couple weeks. If not, JB4 or leave it stock.