GSC S2 Camshafts (08-21 STi)

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SKU: gsc7026S2

$ 998.75 $ 1,175

Billet S2 Camshaft set for Subaru EJ257 Dual AVCS

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.

NOTE: Due to the lobe size, head castings will need to be filed down slightly for clearance - Please check during install


  • Intake/Exhaust Adv Dur - 272/272
  • Intake/Exhaust Dur @ .040" - 233/233
  • Peak Lift - 10.80mm/10.50mm
  • Center Line - 125/128

  • Proper break in and running high zinc oil is a must on flat tappet engines
  • Must be installed by an experienced technician
  • Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side


  • Good for Over 500 WHP


  • 2008-2020 Subaru STI

What's In The Box?

  • (4) Camshafts


  • Manufacturer Standard Warranty

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