BLOX Racing Tuner Series camshafts are designed and manufactured using OEM-spec, chill-cast camshaft cores.Tuner Series Stage 3 camshafts are ideal for highly modified street and full-race engine builds.Upgraded valvetrain is required.Camshaft SpecificationsINTAKE: 272° / 12.8mm EXHAUST: 280° / 11.9mm