This 2006 Audi A6 C6 3.0 TDI was tested in several configurations: with the factory intercoolers, after fitting a larger front-mount intercooler, and after recalibrating the engine software. The initial dyno run on the factory file produced about 221 hp and 450 Nm. With the factory software and the vehicle’s previously changed hardware configuration, torque was about 467 Nm.

Intercooler and calibration results

With the factory intercoolers and a Stage 1 calibration, the car produced around 270 hp and 547 Nm. After the larger FMIC was fitted, a run with the factory software produced approximately 223 hp and 480 Nm. Following further calibration and replacement of the pressure sensor with a 4-bar-range sensor, the dyno showed about 300 hp and 662–670 Nm.

The video also describes a modified exhaust and emissions-system configuration. These figures therefore apply to this particular car and its installed hardware, rather than a standard A6 C6. Dyno readings varied slightly between runs as the engine warmed up.