COMP Cams Camshaft Set F50Cy Nsr-Bl2H-1

XFI NSR (No Springs Required) Blower Hydraulic Roller Swinging/Finger Follower Camshafts DOHC - Big power gains in mid to upper RPM range for blower kits with higher boost. Requires custom ECU programming. Requires Cam phaser limiter kit Part #5493 or optional Cam phaser lock kit #5492 for Race Applications.