GSC Power-Division Billet S2 Camshafts Subaru EJ257 Dual AVCS

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GSC Power-Division billet S2 camshafts for the 08+ Subaru STi EJ257 with Dual AVCS. These cams are built to suit the higher horsepower Subis. With a power range of 500 WHP and up, you need some certain mods to utilize the true potential of the S2s: built motor, with a built/ported head, and a good engine management system. Upgraded valve springs are required; beehive valve springs are recommended but not required.

  •     Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side
  •     Due to the lobe size, head castings will need to be filed down slightly for clearance - Please check during install
  •     Proper break in and running high zinc oil is a must on flat tappet engines
  •     Must be installed by an experienced technician


 7026S2 ADV Duration Duration @ 0.040" Peak Lift Center Line
Intake 272° 233° 10.80mm 125°
Exhaust 272° 233° 10.50mm 128°