Dinan Stage 2 Performance Engine Software-Boost Upgrade – 550i for BMW 550i & xDrive F10 550i GT & xDrive F07

Product Description
With Dinan’s software, your 550i will be capable of achieving its natural top speed as the governor has been removed. And as always, Dinan matches the new car warranty coverage for up to 4 years or 50,000 miles, including the possibility of consequential damages. No one offers better performance or backs it up with such comprehensive warranty coverage.

After many hours of further research, tuning and testing we have improved on our hugely popular Stage 1 Performance Software.  Our team was able to make Stage 2 much faster by improving turbo response across the power-band.  This tuning is especially noticeable in the first two gears, now catapulting the car off the line.  Tuned for a smooth power-band to put down predictable and even power in all gears and throttle positions.  This smoothness improves the quality of the shifting and the overall drivability.


  • 2011-2013 550i & xDrive F10 Sedan 
  • 2010-2012 550i & xDrive F07 GT 
Product Specifications
Labor Hours/Installation Hours 0.50
Emission Status 50 State Emissions Legal.
California Air Resources Board Executive Order Number D-176-39.
Max HP Gain 95 @ 6000
Max Torque Gain 87 @ 3500
Peak Horsepower 494 @ 5000
Peak Torque 579 @ 3500
Peak HP Gain 57 @ 5000
Peak Torque Gain 87 @ 3500
Factory Rated HP 400 @ 5000
Factory Rated Torque 450 @ 1750