Vehicle optimization

Performance software tuning:

Model Engine Stock power
Citroën C4 1.4l Select
Citroën C4 1.6l 16V Select
Citroën C4 1.6l HDi 80 kW / 109 HP Select
Citroën C4 1.6l T 110 kW / 150 HP Select
Citroën C4 2.0l 16V Select
Citroën C4 2.0l HDI Select