Ok, thanks guys. I would keep a paper filter, but with the filter not being in an airbox i would think it would get dirty really quick and with stock replacements being $20 a washable filter would be a better option. I think what I'm going to do is set it up with my stock filter (because besides the filter, it's $10 of parts) and if i see any gains, get a new reusable filter.
This is what it would look like after.