The Cat Cams 1302463 is classed as a 'tarmac rally - race' cam, and can be fitted to the R50, R52 and R53.
Please note that this cam requires your ECU to be tuned for the cam.
270°/278° - 230°/233° - 10.50mm/8.55mm - 1.85mm/2.00m
Please see the data sheet here - 1302463 Data Sheet
Please note this is for the camshaft only, unless the option for the ARP Camshaft Sprocket Bolt has been chosen. If the ARP Camshaft Sprocket Bolt option has been chosen, we may open the ARP packaging and pre-install the bolt in the cam to save on additional packaging.