All badges should be official PORSCHE badges - Posche AG goes after folks infringing on their copyrights. So they all have the studs for metal cars. On a flat area like rear below engine it is easy to use the studs --- not so on the nose script. The studs are not long enough to use the clips on inside without Dremel-ling the fiberglass thinner. Or you can secure with Super glue or clear silicon. Or cut off studs and apply red 3M double sided sticky tape. I used the studs.
There are some good threads here on mouting the emblems - like reversing drill direction. Do a SEARCH.