EVP Head Shim Kit for Polaris RZR Pro R Suspension & Steering FK Spherical Heims

FK Spherical Heims

the Valor V01 on the all new Alpha UTV tire

30 @ 387 ft

EVP Big Injector Tunes also require upgraded BOV or BRV

This power pack also puts you in position to easily (and affordably) add more power down the road by upgrading to EVP's X3 Turbo 135 Intercooled & Big Injector Power Packs

EVP Head Shim Kit for Polaris RZR Pro R Suspension & Steering FK Spherical HeimsDESCRIPTION EVP engineers designed and manufactured the ultimate game changer when it comes to lowering compression for the RZR Pro R. Stock compression ratio on the N A ProStar 2. 0L engine runs high at 12. 5: 1, which is inadequate for any turbo upgrade engine build running high boost and big horsepower. The new EVP Head Shim Kit for Pro R's lowers compression to 10. 8: 1 to help reduce air fuel temperatures and thus prevent detonation as well as