The owner of this 2000 Audi A4 1.9 TDI PD wanted to check an engine calibration installed elsewhere. The initial dyno run with that file showed 112 hp and 294 Nm. The car had a modified turbocharger, a larger intercooler and changes to the exhaust system.

AutoChip prepared a new calibration for the installed hardware. Dyno runs after programming produced approximately 170–177 hp and 420–430 Nm. Repeat testing helped assess how the turbocharger and engine behaved under load.

The video also discusses fitting a further upgraded intercooler, but that was a future plan. Any possible later change in power or smoke levels should not be treated as a result of the test shown.