Cam Kx450F 2188-2E 2188-2ECamshaft Exhaust Stage 2Stage 2 is designed for mid to top end gains Adds a 5% 10% power gain Designed and dyno proven in the USA Manufactured by utilizing state of the art valvetrain software CNC machined from 8620 billet, case hardened steel for an exact fit and lobe profile Engineered to be drop in cams, that use stock valve springs (unless otherwise noted). Select cams feature Hot Cams Improved Throttle Design (ITR) technology; these cams improve