BMW 340xi 2017 Stage:Stage 1 Not for N63 motors

Not for N63 motors

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

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

You will be charged overnight return shipping at checkout

Check engine light removal for downpipes (off-road use only)

BMW 340xi 2017 Stage:Stage 1 Not for N63 motorsExpertly 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