What can I upgrade on my 2024 BoXXer to make it more like the BoXXer Ultimate? How do I add ButterCups to my base-level BoXXer?

For 2024 base-level BoXXer forks, you can upgrade from the Charger 3 RC to Charger 3 RC2 damper with
ButterCups, and you can upgrade the air spring to include ButterCups.