This BMW E46 with a 3.0-litre diesel engine was being prepared for drifting. It already had a larger turbocharger and intercooler, along with other modifications. Before the software revision, the dynamometer showed 211 hp and about 403 Nm with a calibration prepared at another workshop.

At AutoChip, the control unit was recalibrated for the installed components and pressure sensors. After tuning, the dyno showed 250 hp and 533 Nm. The video title compares this result with the stated factory output of 184 hp.

This example shows why software needs to match the specific engine and turbocharger setup. Dyno measurements make it possible to compare an existing calibration with a revised one.