GSC Power Division S1 Billet Performance Camshaft Kit EJ25 DBW

GSC Power-Division billet S1 camshafts for the USDM STi and WRX with intake-only AVCS.

They do not lose any low-end power and produce more power and torque across the entire rev range. Suitable for upgraded turbos of stock frame size, or builds up to 500 WHP.

Upgraded valve springs are required; beehive valve springs are recommended but not required.

Part number: GSC7025S1