This BMW 535d with a 3.0-litre twin-turbo diesel engine was tested on an all-wheel-drive dyno. Before calibration, it recorded 273 hp and 550 Nm. The factory output quoted in the video is approximately 286 hp and 580 Nm, so the initial dyno result was below those nominal figures.

After a Stage 1 ECU calibration, the main run produced 322 hp and about 650 Nm. A repeat run showed around 318–320 hp and up to 656 Nm. The small variation reflects repeat dyno measurements, not a separate mechanical repair.

The standard intercooler remained installed. The technician noted that a more capable intercooler would be needed for any further power increase. A comparison of intercoolers is mentioned at the end of the video as future work; it was not part of this test.