BMW M3 E46 - 1998 - 2005 M3 343hp ECU Remapping
A professional ECU remap can optimise the way your BMW M3 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 343 BHP to 365 BHP, with torque improving from 365 Nm to 390 Nm.