BMW 550xi 2014 Stage:Stage 2 You will be charged return

You will be charged return shipping at checkout

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

of torque through the mid-range

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

Shipping costs for sending handheld will be added at checkout

BMW 550xi 2014 Stage:Stage 2 You will be charged returnExpertly 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