It is finally possible to tune the most recent BMW with B48 engine and B58.

We are now presenting our ECU Stage1 for the 120i fitting the B48b20 motor.

We achieved an impressive power gain thanks to the engine in common with the stronger version of the 1 series 2.0L, the 125i.

The 120i is now capable of 254hp* and 395Nm* of torque, values that actually transform the car and the way it performs on the road.

The tuning file will be very soon available for worldwide shipping using our BIESSE Flasher tuning tool.

Link to product list

* Measured in our Dyno room