Come on guys this is the Newbie section, if you don't want to play nice don't come in here. You know the newbies wind you up so if you haven't got the patience leave them to play on their own. I love this board but even with my post count I find the search feature the most annoyingly 'un'-user friendly example I have ever encountered.
Mellow,
The Cyclone Manifold is essentially two manifolds in one, using primary and secondary runners to allow it to produce more low to mid-range power (especially off boost) without restricting airflow in the higher rpms. It accomplishes this through the use of butterfly valves in the runners, which you will need to ensure are both present and functional, to allow you to take full advantage of the manifold.
Asking if it is better is a difficult question for us to answer because a lot depends on your setup, intended future modifications and what you will primarily be using the car for. The Cyclone is an OEM manifold and works well on stock engines and lightly modified ones for the reasons mentioned above. The Cyclone will flow very similar numbers to a stock USDM manifold so it is good for whatever power people usually make on stock manifolds. If you begin to seriously modify the engine, port the head etc etc you may find it stops flowing enough up top at which point you may want to look at a SMIM.
To make it work you need the vacuum canister, relevant lines and a means to operate the butterfly valves. In a JDM car the ECU has a separate board to operate the Cyclone Manifold. There is some debate as to the exact code used to open the valves and whether it is boost, rpm or load dependent. Keydiver on this board has done a lot of research on the Cyclones and developed a method to open the secondaries using an rpm dependent switch which he can set according to your requirements. This is usually largely dependent upon the type of turbo you use and when boost comes in on your car.
As stated there are other threads out there. I know it can be a pain searching on here but I would recommend trying to learn the idiosyncrasies of the search feature because a lot of those posts give far better explanations than mine, and there is a host of information in them including the exact parts you will need.
Good Luck and let us know how it goes if you decide to go this route.
Paul.