[m550 BOS]

Hi All

I know this information is out there scattered but since I just ordered a 2019 m550 that should be here in a few weeks I figure there's no harm is starting my own thread I can work off of going forward . I've been looking into options for a tune and have a few questions about the tunes in general .

In terms of complexity of install are all the piggyback tunes the same or are some more simplistic than others . For example , are some just a controller I can plug into the obd port inside the car and I'm good to go? Others require me to get under the hood and plug into a few sensors and the ecu?

Can any of them be controlled by my phone/ laptop or tuned up and down easily once installed ?

I appreciate any feedback

Thanks !