Originally Posted by Jude1
The chart says Flywheel HP rather than Wheel HP at the tires. Unless the tuner has an engine dyno and lifted the motor out of the car to test it at the flywheel rather than rolling the whole 335D up on a typical dyno, the chart would seem to indicate that the WHP numbers were upped to correct for drivetrain loss, giving virtual FHP numbers.
Loss wouldn't be a straight % as the loss would very by drivetrain temprature and RPM, but it's easier to think in basics- 12-15% is typical.
The numbers are still very good tho