{"product_id":"s2-camshaft-set-for-ej257-dual-avcs","title":"S2 Camshaft Set for EJ257 Dual AVCS","description":"The GSC Power-Division S2 Camshaft Set is a performance upgrade for the 2008+ Subaru STI EJ257 engine equipped with Dual AVCS. These billet camshafts are specifically designed to support higher horsepower builds, aiming for a power range of 500 WHP and above.\n\nTo fully realize the potential of the S2 cams, several supporting modifications are necessary, including a built engine, a built\/ported cylinder head, and a robust engine management system. Upgraded valve springs are mandatory for proper operation; while beehive valve springs are recommended, they are not strictly required.\n\nInstallation requires careful attention. Cam placement should be confirmed using the provided pictures, with a long nose indicating the left side and a short nose indicating the right side. Due to the lobe size, slight filing of the head castings may be necessary for clearance, and this should be checked during the installation process. Additionally, proper break-in procedures and the use of high-zinc oil are crucial for flat tappet engines. It is strongly recommended that these camshafts be installed by an experienced technician.","brand":"GSC Power-Division","offers":[{"title":"Default Title","offer_id":52664225956152,"sku":"GSC7026S2","price":1058.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687547656.jpg?v=1784335484","url":"https:\/\/store.motormia.co\/products\/s2-camshaft-set-for-ej257-dual-avcs","provider":"MOTORMIA","version":"1.0","type":"link"}