This set of front grills is both gorgeous and functional. Installation on my Boxster GTS 4.0 took about 30 minutes, mainly because I went slow and guarded against scratches- fit was perfect and I could have finished more quickly (but hey, who would think a half hour was excessive)! The functionality aspect will hopefully never even be obvious to me. Aside from not puncturing a cooling coil (which I won’t be aware of if these do their job), I’ll probably have evidence of their performance only if I someday find a big dent in one of them. As stout as they are I don’t expect that day to come. In the meantime, I’m enjoying the sense of being protected from the odd stone or debris that could result in a very bad day. I couldn’t be happier with them!