My friend has lots of little holes in his Infinity Perfects.12 and it still hits hard as hell. It is still clean also. Depends how big the hold u made is because my friend's sub only has tiny ones. If you just punctured the sub while trying to install the screws and just went through the foam, then thats fine. As long as you didn't touch the cone. If it bothers you, you can easily just superglue it back together.