M3 and M4: G80, G81, G82, G83
Brings the gearbox, steering, traction control and suspension software on your G8x M3 or M4 up to M4 CSL level. It changes how the car drives every day, not just on track, and the jerky "kangaroo" feel at low speed goes.
Most of our CSL upgrades are done via remote coding, and customers often add Sports+ braking and steering to the M set-up screen at the same time. If you also want the CS engine software flash, ask us when you book.