hi,
they are bolt on, front wings fasten on by two nuts and bolts to the front valence, one at the top through the bonnet hinge, two self tapping screws under the bottom of the wing to the base unit and the last two which are behind the front light units which you get to from in front of the wheel. the rear wings upon opening the rear door you will see two bolts fastening it at the front of the wing at the rear it fastens with one to the rear valence, from underneath the car there is one that is fastened to the base unit ( it is right near the back of the boot floor the bracket is welded on the back corner ) and finally inside the boot lift the side rubbers and the last bolt is in there.
