I did the mesh guards last winter, using 1/4" galvanized hardware cloth painted black & oriented on a diagonal bias, secured with plastic welds to the intake trim. Looks nice & subtle, works well, but what I didn't anticipate was a new whistle at speed. It is not extreme, but annoying. Fortunately, it doesn't really become audible until I'm well into supralegal speeds, so it can serve as an audible reminder that I might be having too much fun
