BMW M4 Competition 2025 Stage:Stage 1 and 100+ Octane Race Fuel)

and 100+ Octane Race Fuel)

Extend or add burble when available

Map Switching Selections for Various Fuel Types and Power Levels

ECU must be shipped in to be unlocked

AMS ECU TCU & OBD Tune

BMW M4 Competition 2025 Stage:Stage 1 and 100+ Octane Race Fuel)Expertly 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