The BMW X6 M50d might not be a true blue-blooded Motorsport model, but G-Power is willing to fix all that.

With a 3.0-litre, tri-turbocharged, six-cylinder diesel pumping out 389 PS (376 HP) and 740 Nm (546 ft·lbf) of torque under its belt, the X6 M50d can be called anything but under-powered. Even so, compared to its bigger, angrier sibling – the full-fat X6 M – it doesn’t appear to be an extraordinary potent vehicle.

But if anybody really wants, for some reason, a more powerful diesel, luxury, four-door-coupe crossover, then G-Power is will offer them a 455 PS (449 HP) variant, with 870 Nm (641 ft·lb) of torque.

The impressive power upgrade was achieved using a power module – called the Bi-Tronik 5 V1 – which was placed between the factory ECU and the engine. What makes this solution very interesting, is that it remains inactive under partial load, but stick “the pedal to the metal” and it instantly triggers the unique fueling and boost mapping for that additional 74 PS (73 HP) and 130 Nm (95 ft·lb) of torque.

But that’s not all, because the German tuner also offers the D-Tronik 2 V1 upgrade – a bespoke remapping of the factory ECU, customized after each customer’s needs regarding the throttle response and power delivery.

Also optional is the serial top speed restriction removal – which G-Power says it’s possible, without getting into further details. Naturally, a set of 11.0×23-inch “Jet Black”, “Gun Metal Grey”, “Stardust Silver” or “Diamond Cut” HURRICANE RR forged wheels are in order – to subtly signal the grunt under the hood.

PHOTO GALLERY