Pulsar PSR Upgraded Billet Compressor Wheel Turbocharger Bolt on for Polaris RZR XP Turbo 2016-2021 Actuator 4-4.5psi - 100110305 - PSR Upgraded Billet Compressor Wheel Turbocharger Bolt on 2016-2021 Polaris RZR XP Turbo Bolt-on 2016-2021 Polaris RZR XP, no modifications required to fit; OEM Replacement for Polaris Part Number 1205689, 3023297; 360?? Thrust bearing system; 6+6 Billet compressor wheel; 11+0 Turbine wheel Inconel 713c; Stamping Actuator: 3.8-4.0 psi; Billet Actuator: 4-4.5 psi Application 2016-2019: RZR XP Turbo EPS, RZR XP 4 Turbo EPS 2018: RZR XP 4 Turbo EPS Fox Edition, RZR XP Turbo EPS Fox Edition 2018-2019: RZR XP 4 Turbo EPS DYNAMIX Edition, RZR XP Turbo EPS DYNAMIX Edition 2018-2020: RZR XP Turbo S 2019: RZR XP 4 Turbo EPS LE, RZR XP Turbo EPS LE 2019-2020: RZR XP 4 Turbo S 2020: RZR XP 4 Turbo S Velocity, RZR XP Turbo S Velocity 2020-2021: RZR XP 4 Turbo, RZR XP Turbo 2021: RZR Turbo S, RZR Turbo S Lifted Lime LE, RZR Turbo S Velocity, RZR Turbo S4, RZR Turbo S4 Lifted Lime LE, RZR Turbo S4 Velocity