Just got all the parts to upgrade my suspension on my A3 8PA sportback. Delivery of my Bilstein B8 shocks and no dust covers for the shafts were in the box. Is that because they are not needed? Or you have to pay extra? I understand they have built in bump-stops and an inverted upside down mono-tube damper. I dont want to re-use my old front dust covers as I want to keep them in one part for return to the car at a later date. I`m thinking they were not supplied as they are not needed because the damper is inside the tube and protected by that. Any thoughts chaps and chapettes?