Polaris RZR Pro XP, Turbo R & 2021-2022 XP Turbo/S Silver Primary Clutch Spring model_RZR XP Turbo 144 HP ✔ Fits: RZR Pro R

✔ Fits: RZR Pro R

This mount has been designed to be bolted directly to the A-Pillar using stock hole locations

Perfect for or anyone who simply prefers the look and serviceability of an external breather filter

Stock Injector Power Flash Stages (summary)

Helix angle alters belt pressure and shift behavior

Polaris RZR Pro XP, Turbo R & 2021-2022 XP Turbo/S Silver Primary Clutch Spring model_RZR XP Turbo 144 HP ✔ Fits: RZR Pro RDESCRIPTION The EVP Shift Tek Silver Spring, used with stock clutching, yields about 2200 RPM engagement. This is high enough for EVP Launch Control programming. For a complete setup, we recommend the Shift Tek Ultimate Clutch Kit, which pairs the Silver Spring with weights, a turquoise secondary spring, and a helix. Instructions Pro XP Shift Tek Silver Spring Clutch Kit Manufactured by Evolution Powersports. Official specs and resources: