BMW 4 serie G22 - 2020 -> 420i 184hp ECU Remapping
A professional ECU remap can optimise the way your BMW 4 serie delivers power and torque, helping the vehicle feel stronger, smoother and more responsive in everyday driving.
The expected Stage 1 figures for this vehicle show an increase from 184 BHP to 250 BHP, with torque improving from 300 Nm to 440 Nm.