XR SERIES 11MM CUSTOM AGE 625 HEAD STUD KIT FOR POLARIS RZR XP TURBO/S, PRO XP, & TURBO R Evp High-Flow We start with a multiple

We start with a multiple layer breathable media combined with our unique filtration technology resulting in a superior filtration system

This replacement for the factory down pipe features the same performance as the original EVP Race Bypass Pipe for X3's

Compatibility: Fits MAC Air

This is for the guy the wants the best of the best and race-proven great quality

XR SERIES 11MM CUSTOM AGE 625 HEAD STUD KIT FOR POLARIS RZR XP TURBO/S, PRO XP, & TURBO R Evp High-Flow We start with a multiplePrevent 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 larger 8470