This billet aluminum manifold swivels on one end which allows you to attach the manifold without turning the entire manifold body. This is especially useful when attaching the manifold to the NX Lightning 45 bottle valves. The manifold has two 1/8npt ports allowing you to connect a nitrous gauge, fuel pressure gauge, or any 1/8npt accessory in-line with a D-4 or D-6 line.
Things that could pair well together with what you are looking at...
Messaged Brian about the thought of doing coilovers and sway bars on my c6. He called me up and we talked for probably 30 min, awesome guy to work with/shop with. Definitely would recommend this company.