This is always something that I’ve wanted to change, given I think that the normal and sport modes in the M3 should be slightly tighter. Even better is being able to variably adjust the assist based on program selection coupled with speed dependent settings.

By adjusting these maps, the assist can be changed from zero to full assist at any speed between 0km/h and 200km/h. This could be rescaled to accommodate specific changes above 200km/h, however, this is not necessary.

We will likely be offering these changes free of charge to all existing BPMSport customers after testing has been completed.

For now I wanted to share a graphical representation of the different assist offered by the servotronic steering system:

Normal vs Sport Compared:

X Axis = Speed, Y Axis = Amount of Assist.

We’re happy to post Normal and Sport as individual graphs for you to take a look.