Posted 04 April 2007 - 12:09 PM
I have not seen the parts supplied with the retro conversion kits so I can only comment on the original Mk1 grilles.
As mentioned, the grille itself attaches to the front panel with at least four self-tapping screws. If you like working on your own car, consider buying the "grille buttons" instead as these give you a two-knob, quick-on, quick-off method of getting in to the oil filter and such. Grille buttons use two long threaded studs through the front panel. Knobs screws onto these studs to secure the grille at its outside corners.
The moustache? From memory, it's also secured with a handful of self tapping screws along its bottom/inner edge. The final dress-up are the moustache whiskers. Those are short chrome extensions that go on the ends of the moustache. To secure those is tricky. The whiskers are secured with clips that are supposed to get screwed to the front panel. Fitting them as the factory intended is a pain. Instead, I modified the clips by soldering a nut to them, marked and drilled through-holes in the front panel and secured the clips by inserting machine screws from the back (inside of the front panel). This allows the clips to stay with the whisker (not on the car) when removed, and it makes it much easier to install the whiskers without damaging the paint.