Original Z probe shipped with Flsun Supe Racer is pretty loose and prone to moving around during the calibration/probing process. This probe case is designed with less tolerance so it will fit tight on the effector. Use the PCB the lid, the magnet, and the screws from the original probe
Theoretically can be printed without support (having the bridge detection turned on in Cura) but attached a Cura project file with custom support added.

Flsun Super Racer

No

Yes

0.12mm

20%