COMP Cams Camshaft Set F50Cy Nsr-Na1H-1

XFI NSR (No Springs Required) Hydraulic Roller Swinging/Finger Follower Camshaft. DOHC and Great upgrade over stock cams. Good power gains above 4500 RPM. Requires Cam phaser limiter kit Part #5493 or optional Cam phaser lock kit #5492 for Race Applications.