The ZBROZ Polaris RZR PRO XP 4 Stage 1 Dual Rate Spring Kit for Fox Dynamix Shocks Shocks will deliver Race-Inspired Performance and Control for Mountain Trail, Rock Crawling, and Desert/Dune rally action. This is the best and most cost-effective spring kit available for DIY installation!
https://www.zbrozracing.com/media/zbroz-installation-pdfs/K25-PL1033-0_Polaris%20RZR%20PRO%20XP_4%20Seater_Fox%203.0%20Internal%20Bypass%20Live%20Valve%20Shocks%20(2020-2021).pdf