My son's hard tail bike has a 2018 Fox 32 SC Performance with the Grip damper. FOX ID DB7Q
Now all things being equal, we should be able to drop in a SC FIT4 damper into this? Just basing that on some of the OEM performance elite forks I have seen which have the black anodized stanchions with SC FIT4 dampers.
Saw this 2019 FIT4 on Ebay. Past experience has also told me that sometimes the cartridge assemblies are backwards compatible to older models.
My son's FS bike has the FIT4 damper so I think he just wants both his bikes to be the same.