BMW 428xi 2014 Stage:Stage 1 Requires ECU to be mailed

Requires ECU to be mailed in

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

We send you an OBD cable and remotely tune the car using remote desktop software called TeamViewer

We also recommend changing your spark plugs and Primary O2 sensors every 15k miles

we will ship it back via Ground

BMW 428xi 2014 Stage:Stage 1 Requires ECU to be mailedExpertly 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