CLA 45 S piggyback box?
I hope soon I will be able to order a brand new CLA 45S AMG, currently I'm owning bmw M550XI MY2021 and before that I had bmw M340XI MY2020, however I was really disappointed by BMW quality, basically everything in both cars was rattle and squeak and I decide to return my M550XI and go for CLA 45S AMG. Some may say it's a downgrade as I go from big limo to an average/small coupe, but I love how the new CLA looks like it was some kind of a love from first sight, I have tested one in a mercedes show room ( it wasnt 45S) but I don't find the car small at all and I love how it feels inside the car...
Anyway enough for my background story, I'm here to ask mainly for what are the opportunities to tune those cars.
As I bought M550XI I wanted to tune it right away however I understand that since the car is plugged non stop with SIM card and got mobile data connection it flag immediately if you flash or use piggyback box and you basically lose your drive train warranty. Do some of you guys know how is the situation by Mercedes? Does they flag their cars if you use remap or piggyback box.
Actually ECU remap will be quite hard as every time I go to service I need to reflash it... I ask more about the piggyback box aka RaceChip or something else that you can just plug into the sensors of the cars and easily remove it before you go to service it.
Thanks in advance! And I hope soon I will be one of you guys

Regards,
Niko



