This is the same Power Hub as we use with the other applications, just with a little different mounting configuration. It is fine to mount under the hood, but it wouldn't be recommended to mount in the open elements in the bed.
While we currently offer the Power Hub used on the other kits as a standalone product, the Power Hub from this kit is not available by itself yet. We will be making it available soon though, so keep an eye out if that is what you'd like to use.