GSC Power-Division Billet S1 Camshaft set for EJ20 JDM/EURO WRX & STi with AVCS. These will not drop any low end power, and will create more power and torque across the entire RPM range. Good for stock frame upgraded turbos or up to 500 WHP upgrades. Upgraded valve springs are required; beehive valve springs are recommended, but not required.
GSC Power-Division Billet S2 camshafts for the EJ20 JDM/EURO 2.0L STi. These cams are built to suit the high horsepower Subis. With a power range of 500 WHP and up, you need some certain mods to utilize the true potential of the S2s: built motor, with a built/ported head, and a good engine management system. Upgraded valve springs are required; Beehive valve springs are recommended but not required.
GSC Power-Division billet S3 camshafts for the EJ20 JDM/EURO 2.0L STi. These cams are built to suit the highest 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.
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