In what seems like the blink of an eye, the bmw 5 series range has established itself as the best-selling model in the executive segment. A convincing balance between dynamics and ride comfort, exemplary efficiency, premium quality and innovative equipment features has earned both the Sedan and the Touring versions their huge popularity.The 550D is an example of all the above plus it has not one or two, but three turbochargers to back it up.
With a 3.0l (2.993 cm3) 6 cylinder engine 280 kW / 381 PS / 375 hp (ECE) of power and an 8-speed automatic powertrain this BMW would accelerate 0-60 mph in 4.5 sec, 0-100 km/h in 4.7 sec, 0-200 km/h in 19.4 sec and quarter mile time is 13.1 sec.
The sporting focus of the BMW M550d xDrive and BMW M550d xDrive Touring is highlighted by bespoke modifications to power transfer, chassis and design components. These upgrades bear the signature of BMW M GmbH, which uses its development expertise to mould the two models into extraordinarily harmonious overall packages. The outstanding power of the tri-turbo straight-six diesel engine is translated into thrilling driving dynamics with impressive precision.
Our goal is to make the performance much better knowing that the potential gains of this engine will be outstanding due to the technology that is involved without compromising the health of the engine or the diesel particle Filter.
Before we discuss the power output of our stage 1 software it would be good to point out that the power difference between the factory claims and a real dyno measurement is definitely higher.In fact the torque is 822nm instead of 740nm claimed by Bmw and this happens due to the overboost settings on the factory management system.
Finally our gains are 457ps 895nm with a very stable torque and horsepower curve all over the power-band.Car feel sharper and more sporty in the appropriate driving modes without compromising the drive-ability or fuel consumption that the stock software was providing.