This BMW E91 2.0 diesel came in for an ECU software check and a power increase. The control unit already contained an aftermarket calibration, and the settings had shortcomings. The previous program was not dyno-tested; instead, a revised calibration was prepared and written to the ECU.

After the work, the Dynomax dyno recorded 200 hp and 428 Nm. The factory figures quoted in the video are 163 hp and 350 Nm, making the final result approximately 37 hp and 78 Nm above that nominal reference. This is not a direct comparison with a pre-work dyno measurement of the car.

A suitable gear was selected for the test run, and the car’s response was checked on the road. The result shows what this vehicle achieved after recalibration, but the exact output of the previous software is unknown.