After extensive dyno testing, Cosworth is pleased to release the S2D camshaft set for the 2008 and newer Subaru STI. These camshafts are ground on new billets specifically for the EJ257B Dual AVCS engine.
Cosworth camshafts are designed for maximum usable power and excellent boost and throttle response. The Cosworth S2 camshaft profile has been proven in many high power race cars and is compatible with stock or ported cylinder heads.