Billet S3 Camshaft set for Subaru EJ257 Dual AVCS by GSC Power-Division
GSC Power-Division billet S3 camshafts for the 08+ Subaru STi EJ257 with Dual AVCS. These
camshafts are built to suit high horsepower cars with a power range of 750-1000 WHP and a rev range of 4500-
9500 RPMs. Specific engine modifications are required to utilize the true potential of these camshafts
including a built bottom-end (sleeved or closed deck reccomended), built/ported heads (casting must be
clearanced for higher lift), and upgraded valve springs. A standalone ECU or tune with speed density is
highly reccomended in order for proper idle characteristics.
Features
- Proper break in and running high zinc oil is a must on flat tappet engines
- Power range of 750-1000 WHP
- Rev range of 4500-9500 RPMs
