GSC S1 Camshafts (08-20 STi)

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SKU: gsc7026S1

$ 998.75 $ 1,175

Billet S1 Camshaft set for Subaru EJ257 Dual AVCS

GSC Power-Division billet S1 camshafts for the 2008+ STI EJ257B With Dual AVCS. Good for stock frame turbo or up to 500 WHP (GT35R) upgrades. 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 - 264/264
  • Intake/Exhaust Dur @ .040" - 226/222
  • Peak Lift - 10.80mm/10.50mm
  • Center Line - 125/128


  • Good for stock frame turbo or up to 500 WHP


  • 2008-2020 Subaru STI

What's In The Box?

  • (4) Camshafts


  • Manufacturer Standard Warranty

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