So I've installed my FMIC and it fits nicely. I've already cut away some of the bumper to fit over the core so that part is complete. Now I'd like to add material to the area around the core to funnel air into the core. I'm looking for opinions on what type of material to use that I can pick up at a local hardware store/home improvement place. Remember I need to fasten it to the bumper and then opinions are welcome on how to attach it near the core/on the core. I know this isn't absolutely necessary, but it can't hurt and it would provide more a finished look rather then openings around the core. Someone has had to do this is the past? I'll provide some pics later, I'm working at the moment. Thanks in advance.