OK so on the Spec clutches with their flywheel it comes with the clutch disk, pressure plate, alignment tool, release bearing and pilot bearing.
For reference the ACT clutches only come with PP. Disk, and alignment tool.
The stage 2 and 2+ are very popular.
We recommend staying with the OEM DMFW if you are regular full bolt on. If you have upgraded turbo(s) and in excess of 500WHP you will need to go to a single mass flywheel. Historically the aluminum chatters quite a bit, and the steel option is supposed to chatter a little less.
The DMFW at high HP levels are causing a inherent imbalance, causing false misfires.