GSC Power-Division billet S3 camshafts for the EJ205 WRX Version 5 and 6. These cams are built to suit the high-horsepower Subys. With a power range of 700 WHP and up, you need certain mods to utilize the true potential of the S3S: a built motor, with a built/ported head, and a good engine management system.
- 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 installation
- Proper break-in and running high zinc oil is a must on flat tappet engines
- Must be installed by an experienced technician
