I bought a SquidSkins airbox recently.
The difference between it and the Turn-One or Durbahn airboxes is the S.S. airbox is based on the Moriwaki airbox and is a closed top type (has a cover) vs the open top airboxes like T-O or Durbahn which use the fuel tank as the top of the airbox.
It had more volume than the OEM airbox, but less volume than the open top types.
I have two issues with mine currently. One, the cover latches were not to my liking as I removed them and was going to replace them with some quality spring type draw latches.
Unfortunately I found the openings for the throttle body mounts were made too large, so I'm going to give James a call at SquidSkins to find out what the issue is.
In the mean time, here's some photos of the airbox.
Airbox with cover, left side
Airbox with cover, right side
Airbox inlet view without cover in place
Airbox bottom view
Airbox left side view with cover top
Airbox interior view with interior view of cover
Interior comparison of SquidSkins airbox vs Turn-One airbox
Comparison of inlet area of SquidSkins airbox vs Turn-One airbox