What is it: Subwoofer Protector Cover
Vendor: Windcalmer, HCF's Welding Expert
Cost: I think it was like 20 bucks
Installation: If you dont know how to install it you most likely have a mental disability
I had him design it like the japanese war flag called HINOMARU and paint it red. Just screw it on tight and let it do it's thing while looking very nice.