Billet S3 Camshaft set for Subaru EJ255/7 with Intake AVCS #GSC7025S3

Description

GSC Power-Division billet S3 camshafts for the USDM STi and WRX with Intake only 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 filled 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