BMW M550xi 2021 iflash " OBD tunes allow customers

" OBD tunes allow customers to simply plug in a cable and upgrade their ECU

This upgrade requires you to send us your ECU for re-programming

We also recommend changing your spark plugs and Primary O2 sensors every 20k miles

Car > Settings > General Settings > Data Privacy > Select "No Service"

DME Tuning’s ECU software for the BMW 750i is guaranteed to give you MORE of a good thing

BMW M550xi 2021 iflash " OBD tunes allow customersExpertly calibrated and meticulously refined, DME Tunings ECU software is guaranteed to give you MORE of a good thing. More horsepower, more torque, and a more exhilarating driving experience by delivering usable power through improved throttle response and torque management. With additional ft. lbs. of torque through the mid range, acceleration out of your favorite corner and onto the straight is noticeably quicker throughout the rev range. DME