New Cusco version, uses two radiator hose "taps" with banjo fittings. Old version had a block fitting for the return side. You could probably get a couple of those radiator hose taps people use for gauges with the NPT fittings.
Here is the install manual (in Japanese) but has a bunch more diagrams.
http://www.cusco.co.jp/products/pdf/...130806-%29.pdf