This 2007 Jeep Grand Cherokee 3.0 CRD had been bought with previously modified ECU software. Although the DPF was physically present, its operation had been disabled in software; intake swirl-flap control had also been changed. After the original system functions were initially restored, the dyno showed 151 hp and 411 Nm, and the vehicle did not perform as the owner expected.

Calibration and repeat readings

After diagnostics and software adjustments, the dyno showed approximately 251–252 hp. A repeat run recorded about 715 Nm. The video title states 750 Nm, so that figure should be treated as a separately claimed result rather than the reading from the same repeat run.

The video does not confirm that the DPF was physically removed. It shows changes to ECU software and dyno testing of this specific vehicle.