This kit is completely ready to install Titan Aero.
It includes aero mount, fan duct for original fan, X-axis end stop spacer, connector cover, cable holder and 30x30 cooler adapter for aero.
The only thing you need to do is increase the length of the extruder motor cable.
X-Endstop mount provides the minimum offset for the X axis.
Fan duct for excellent quality is printed in two parts, assembled with any glue and provides excellent circular airflow.
Mega S uses a 30mm NEMA17, if you will be using this stepper motor, you need the Main_30mm.STL model. If you will be using the small 24mm Nema17, then you need the Main_30mm model.
You will also need M3 nuts and screws for assembly.