BMW X3M 2019 Stage:Stage 2 We recommend a one-step colder

We recommend a one-step colder spark plugs for better performance

We also recommend changing your spark plugs and Primary O2 sensors every 20k miles

The ECU will be tuned the same day it is received and DME Tuning will then ship back the ECU using whatever method it was shipped in with

Pricing includes ECU unlock

BMW X3M 2019 Stage:Stage 2 We recommend a one-step colderExpertly calibrated and meticulously refined, DME Tunings ECU software for the BMW X3M 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