This is a complete kit, with twin disc clutch assembly, install kit (ARP flywheel bolts, clutch hardware), button flywheel, and spacer as needed.
What engine? What transmission? All of them!
We have a version for your UZ engine, with Z33 trans, R154, V160, or W58! The twin disc is recommended for 800rwhp cars for street/drift/endurance. The sintered metallic compound is one of the highest quality materials for clutches. This clutch has slots between the segments to help cool the clutch easier, and extra thick padding to last through an extreme amount of abuse!
The starter gear includes the ring gear needed to start the car. The much smaller button flywheel has much less rotating mass to deal with and works very well, but has no starter motor engagement.
If this is your first time with an XAT clutch conversion, you will need the starter gear as well.