SDI Dual Rate Shock Spring Kit RZR XP 1000 XP Turbo 4 Arctic Cat Wildcat suspension kit or air locker control

or air locker control

Full-length #10 double-pull zippers for easy access

5mm thick rotomolded plastic construction

If you want the stock look

SDI Dual Rate Shock Spring Kit RZR XP 1000 XP Turbo 4 Arctic Cat Wildcat suspension kit or air locker controlSDI Dual Rate Shock Spring Kit for Polaris RZR XP 1000 & XP Turbo 4 Product Description The SDI dual rate shock spring kit for Polaris RZR XP 1000 and XP Turbo 4 is engineered to dramatically improve suspension performance and ride quality. Designed specifically for Walker Evans equipped vehicles, this spring upgrade converts your factory suspension to a true dual rate spring setup. Through extensive testing and tuning, SDI developed a spring