McLaren MP4-12C 2013 ECU Tune Stage:Stage 2 Please contact us with your

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

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

We will ship you a My Genius handheld device which requires a Windows 7+ computer to pass files in between

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

McLaren MP4-12C 2013 ECU Tune Stage:Stage 2 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