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

Features

  • Intake/Exhaust Adv Dur - 264/264
  • Intake/Exhaust Dur @ .040" - 226/222
  • Peak Lift - 10.80mm/10.50mm
  • Center Line - 125/128

Benefits

  • Good for stock frame turbo or up to 500 WHP

Applications

  • 2008-2020 Subaru STI

What's In The Box?

  • (4) Camshafts

Warranty

  • Manufacturer Standard Warranty

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    GSC

    GSC Power-Division is a leading manufacturer of high-performance valvetrain components for turbocharged and high-performance engines. Specializing in camshafts, valve springs, and retainers, GSC products are engineered to improve power, reliability, and efficiency. Trusted by enthusiasts and professionals worldwide, GSC Power-Division delivers cutting-edge solutions for both street and motorsport applications.

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