Billet S3 Camshaft set for Subaru EJ257 Dual AVCS # GSC7026S3

DescriptionGSC Power-Division billet S3 camshafts for the 08 Subaru STi EJ257 with Dual AVCS. These cams are built to suit the high horsepower drag Subis. With a power range of 750-1000 WHP and a rev range of 4500-9500 RPMs, you need some certain mods to utilize the true potential of the S3s: built motor, with a built/ported head (clearanced for lift), and a standalone engine management system. Upgraded valve springs are required; beehive valve springs are recommended but not required.Check Pictures for cam placement. Long nose = Left Side, short nose = Right Side Due to the lobe size, head castings will need to be filed down slightly for clearance – Please check during install Proper break in and running high zinc oil is a must on flat tappet engines Must be installed by an experienced technician Check AVCS advance during install – must be done by experienced engine builder