With a torsen diff up front, any (front) wheel slip will result in a pull on the steering wheel towards the slipping wheel because the gear setup in the torsen moves the applied torque to the non-slipping wheel very quickly. The slip event should be very short due to the quickness of the recovery. These steering responses can catch people unaware if they're not experienced with this type of differential in the FRONT. That said, on dry FLAT paved surfaces you should never feel any pull EXCEPT for it pulling back to the centered position, ESPECIALLY under acceleration UNLESS one of the IWE are malfunctioning and not engaging the drive on that wheel.