BMS (Burger Tuning) F10 550xi N63 V8 tune all wheel drive before/after Mustang dyno numbers - + 67 all wheel horsepower
Great dyno numbers here for an all wheel drive F10 550xi equipped with the N63 4.4 liter V8 twin turbo motor. The owner got a piggyback tune from BMS (Burger Tuning) which retails for a very reasonable $379. What does $379 get you? How about an increase of 67 all wheel horsepower and 74 pound-feet of all wheel torque? Very impressive gains and keep in mind these are at all four wheels on a Mustang dyno which generally reads more conservatively than a Dynojet.
The baseline for the car was 354.9 horsepower at all four wheels. Stage I with the default settings put down 390 at all four wheels. Taking Stage I and adding an additional 4 PSI of boost takes output to 421.5 at the wheels. A gain of 66.6 but let's just round it to 67 wheel horsepower.
Check out the dyno graph below.