Remember the uprated BMW 850i xDrive McChip-DKR unveiled in 2019? Well, the folks at the German firm have now turned their attention to the Bavarian automaker’s X-badged derivatives, revealing two new performance kits for the X7 M50d and X5 M50d variants.

The 3,0-litre six-cylinder oil-burner generates 294 kW and 760 N.m of torque as standard in both derivatives, with the stage 1 upgrade adding 64 kW and 90 N.m to now total 358 kW and 850 N.m. However, for those seeking even more punch for their Bavarian SUV, McChip-DKR also offers a stage 2 upgrade.

The second performance package enhances the quad-turbocharged diesel engine’s peak outputs to a whopping 384 kW and 865 N.m, which is sent to all four corners via BMW’s xDrive all-wheel-drive setup. According to McChip-DKR, the increase in output can be attributed to the “successful optimisation” of the MD1 control units from Bosch.