GSC S2 Billet Camshaft Set Dual AVCS (2008-2021 STI)

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  • $1,058.68
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  • Regular price $1,245.50
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GSC Power-Division Billet S2 Camshafts for the 2008-2021 Subaru STI EJ257 with Dual AVCS are built to suit the higher horsepower engine builds. 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.


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

GSC Install Recommendations:

  • 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