Steering wheel is more resistant to turn left vs. right

[Andino]

I noticed recently that the steering wheel on my P90D requires more resistance to turn left compares to turning to the right. The delta isn't significant so the service center felt its normal. But since i drive the car everyday, I definitely noticed the difference. It's not an alignment issue as the SC had just performed an alignment and the issue still exists. Anyone care to chip in? My wheel is always set on sports mode.