This BMW E61 2.5d with an EDC16C31 control unit came in for Stage 1 calibration. The video lists factory figures of 177 hp and 400 Nm. The vehicle documents showed a different power rating, so the owner wanted to check the actual output on a dyno.

Before the software change, a run with the original file recorded 176.8 hp and approximately 420 Nm. After Stage 1 calibration, the dyno showed about 239 hp and 525 Nm.

The vehicle's emissions systems were retained. The comparison in this case is based on dyno runs before and after ECU calibration.