The BMW E61 2.5d arrived at AutoChip with an existing software tune. The owner reported that it had previously made around 230 hp and 501 Nm on a dyno in Germany, but those figures were not verified at AutoChip. File analysis showed that emissions-system diagnostic functions had already been altered.

Inspection of the exhaust system found only a few open passages in the metal filter element, which could restrict exhaust flow. Work was carried out on the filter assembly, and an AutoChip calibration was then installed and tested on the dyno.

The final runs produced approximately 256 hp and 555–556 Nm. The video notes that there was no significant black smoke during the test. These figures are the results measured on this car at AutoChip; they do not confirm the earlier figures reported from Germany.