New GSC Evo X Billet S1 Cams View larger

GSC Evo X Billet S1 Cams



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The GSC Power-Division billet S1 cams for the Mitsubishi Evo X are designed for those with the stock turbo up to the 550 HP range. These cams will not sacrifice any bottom end loss over stock cams; nothing but gains, and will promote faster spooling of the upgraded turbos. Gains of 20-50 WHP (depending on turbo) have been seen by simply bolting the S1 cams in. 

  • Designed for a rev range of 3000-7500 RPMs
  • The S1 cams work well on the stock valve springs
  • Forged billet core
  • Made 100% in the USA