No, the Charger 3/3.1 damper in the 2024+ Boxxer D1 cannot be converted to Charger 3.2 and must be replaced to be upgraded. The Charger 3.2 RC2 damper assembly upgrade kit is part number 00.4318.112.002 (Damper Upgrade Kit - Charger3.2 RC2 Crown w/ButterCups (includes complete right side internals) - BoXXer D1+(2024+)).
RockShox service kits and spare parts are best obtained through your local shop or dealer. See our dealer locator, below, to find a dealer near you. If no one is currently listed near you, then please search for local shops via your preferred web browser.
https://www.sram.com/en/dealer-locator
Manuals and additional information about RockShox and SRAM components can be found at our service site, linked below.
https://www.sram.com/en/service
Further questions?
Reach out to Rider Support by Asking A Question at the link below.
https://www.sram.com/en/rockshox/campaigns/rockshox-rider-support