BMW M5 E39 - 1995 - 2003 5.0 V8 400hp ECU Remapping
A professional ECU remap can optimise the way your BMW M5 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 400 BHP to 430 BHP, with torque improving from 500 Nm to 535 Nm.