OK so I took every thing out some time ago.Sounds a lot better but.Then I had this big ugly black hole with a ring where I cut out the center.Found some vent covers at the boat store that were 3 1/4 in. stainless with slots in them giveing you about 2 3/4 opening.I made snap rings out of 1/8 in round bar and just snaped them in the grove to hold covers in. Worked great and I think looks alot better. It may just be me, but I think it sounds a little deeper.The covers were $4.49 the bar I had. Here are a few shots of how they look.
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