XR Series 11mm Custom Age 625 Head Stud Kit for Polaris RZR XP Turbo/S, Pro XP, & Turbo R productvideo_qsbyL2EjH7A tested and manufactured in the

tested and manufactured in the United States

The EVO Intake Boot does not have an "accordion" section like the OEM to disturb the air flow

you have a lot of options for mounting this mirror to almost any roll cage (OEM or aftermarket)

Includes Blow-Off-Valve (BOV) port and an extra port for a boost gauge

Superior Filtration System over OEM & other Performance Style Air Filters

XR Series 11mm Custom Age 625 Head Stud Kit for Polaris RZR XP Turbo/S, Pro XP, & Turbo R productvideo_qsbyL2EjH7A tested and manufactured in theDESCRIPTION Prevent premature head gasket failure on bigger power engines! The Evolution Powersports XR Series CA 625 11mm direct replacement Polaris XPT head studs are for those wanting the ultimate strength for high horsepower engine builds. Manufactured by ARP using their proprietary Custom Age alloy, the XR series head stud is the strongest head stud available anywhere. Custom Age 625 alloy typically equals or exceeds the clamping force of ~2mm