I found a little felt bag from a set of headphones that fits over it nicely. Trying to find my burlap Evan Williams bag or I'll have my wife make a cover.
I've got the space and a friend with a lift if I need it. The OCC should be fairly simple when I get some time. I'd rather watch the valve cleaning process the first time though.
I have a 3" CS SRI and didn't notice any whooshing noise until I added a ETS TMIC. Not sure why it made a difference, but it sounds like a wind tunnel under the hood now.