A single XSPC Rasa on a 2600k

If I can trust my Koolance flow meter I am just shy of 2GPM.

And you can see some other pics of the system on the recent page of the case gallery.

As for vibrations I don't notice them. If there are, they are quieter than the two MCP35X sound going full bore. The pumps are the definitely the loudest part of the system.