BMW Z4 E85 - 2003 - 2008 3.5i - N54 - 306hp ECU Remapping
A professional ECU remap can optimise the way your BMW Z4 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 306 BHP to 370 BHP, with torque improving from 400 Nm to 500 Nm.