This 2018 BMW G11, with a 4.4-litre twin-turbo petrol engine and all-wheel drive, received a Stage 1 calibration. The video gives the original figures as 450 hp and 680 Nm. After tuning, the dyno recorded 511 hp and 750 Nm.

Engine and gearbox calibration

The video describes calibration work on both the engine and gearbox. Data logs from the original and modified files were reviewed. The technician says knock readings, turbo pressure and temperatures were checked and that the parameters looked satisfactory.

Compared with the original figures quoted in the video, the dyno result is 61 hp and 70 Nm higher. The video does not show a separate dyno measurement with the original software, so this is a comparison with the quoted stock figures, not a direct comparison of two dyno runs.

Maintenance after tuning

The vehicle had covered about 100,000 km. The technician recommended replacing the spark plugs, but the video does not show that this work was completed. The dyno result reflects this vehicle after calibration; further maintenance should be based on the engine’s condition.