Just in from Germany are these "Deep" Duck bill spoilers for the VW MK1 Rabbit. This is the style that came from the factory on European MK1 Gti's. This spoiler will fit directly on all MK1 Rabbits- A good portion of cars already have the mounting holes already drilled for ease of installation. If yours does not, that will be the extent of the modification needed. these measure 4.25" deep x 47.50" across.
As always, if you have any questions, please ask-