McLaren 675LT 2017 ECU Tune mapswitching acceleration out of your favorite

acceleration out of your favorite corner and onto the straight is noticeably quicker throughout the rev range

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

The ECU will be tuned the same day it is received and DME Tuning will then ship back the ECU using FedEx Overnight shipping

Not for N63 motors

Check Engine Light removal for downpipes (off-road use only)

McLaren 675LT 2017 ECU Tune mapswitching acceleration out of your favoriteExpertly 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