BMW 530d G-Series: Stage 1 + xHP Stage 3

Another modern BMW 5 Series refined properly. This BMW 530d G-Series — the 3.0-litre B57 straight-six diesel — came in for our full engine and gearbox package: a custom Stage 1 dyno calibration paired with xHP Stage 3 gearbox software, all developed live on our 4WD linked V-Tech dyno.

The numbers

It arrived producing 266bhp and 637Nm on our baseline run. After the Stage 1 calibration and xHP Stage 3, it left making 330bhp and 754Nm — measured on the rollers, not estimated:

What the transformation feels like

That’s +64bhp and +117Nm. The objective here was strong, usable torque while keeping the refinement you expect from a 5 Series. The result is a much broader torque curve, sharper throttle response and effortless mid-range acceleration — the car feels significantly more responsive in real-world driving, without compromising comfort.

Why xHP Stage 3 matters

With xHP Stage 3 on the ZF8 automatic, the gearbox shifts faster, reacts more intelligently under load and manages the increased torque far more effectively. The whole drivetrain feels tighter, smoother and far more decisive — letting the car actually use the extra output rather than the factory software smothering it.

How it was done

All calibration work was carried out live on our V-Tech 4WD linked dyno, with a full health check before any tuning and detailed data logging throughout. The map was written for this exact car — its ECU variant, its fuel, its condition. No generic files. No shortcuts. Just precision B57 tuning done properly, with the original software backed up so it’s fully reversible.

Your 530d could be next

530d, 540d or another 3.0-litre straight-six — we can transform how it drives while keeping that BMW refinement. See our BMW 30d tuning page for figures, check your car’s gains, or get a free quote and we’ll book you in.