BMW 8 serie G15 - 2018 -> 840i 340hp ECU Remapping
A professional ECU remap can optimise the way your BMW 8 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 340 BHP to 400 BHP, with torque improving from 500 Nm to 580 Nm.