PISTON KIT CP CARRILLO KAWASAKI KX450F 19-23 KX450X 21-23 96MMPistons are the backbone of any true hardcore racing engine and that? s where CP Carrillo excels. Our Engineering department started off analyzing the competition, gathering industry data and deciding to make the highest level of pistons, period. The heart and soul of our pistons are built through our Engineering Department and its resources. This department is made up of several factors that push them ahead of the competition; Reverse Engineering,