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The COMP Cams XFI NSR hydraulic roller camshaft set is a DOHC upgrade that delivers notable power gains above 4,500 RPM for street applications. It uses swinging/finger followers and requires a cam phaser limiter kit (Part #5493) or optional cam phaser lock kit (#5492) for race use. Installation also calls for custom ECU programming to realize intended performance gains.
COMP Cams Camshaft Set F50Cy Nsr-Na1H-1
