Big Bore Complete Kit 1065cc / RZR XP1000 ('14+) Category_Default Category/SLED/Polaris/Pro-R 800 /Miscellaneous select and add each level

select and add each level individually to the cart

and head gasket

prolonging the life of your secondary clutch components

We have upgraded our exhaust valve technology from a membrane bellow style actuator to a piston style actuator

Big Bore Complete Kit 1065cc / RZR XP1000 ('14+) Category_Default Category/SLED/Polaris/Pro-R 800 /Miscellaneous select and add each levelThis is the complete kit you need for over 140+ horsepower on pump gas! Looking for even more? You can go to our stage 2 big bore kit. Proven reliable and to have arm ripping power without having all the extra weight and extra components of a turbo. We have spent more time on the dyno than anyone in the industry to perfect our performance modifications. Our goal is the most power for the money, and we definitely deliver! This kit starts off by adding