BMW X3 xDrive 35i 2017 iflash Please contact us with your

Please contact us with your VIN if you are unsure what motor your 2013 550xi has

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

You must fill out and include a copy of the ECU Information form along with your ECU upon sending it in

and a more exhilarating driving experience by delivering usable power through improved throttle response and torque management

The device holds the stock and tuned files for easy back and forth

BMW X3 xDrive 35i 2017 iflash Please contact us with yourExpertly 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