S2 Camshaft for Subaru EJ257 2.5L AVCS

The Cosworth KK3766 is a high-performance camshaft set specifically engineered for the Subaru WRX STI EJ25 (2.5L) engine, featuring AVCS (Advanced Active-System) compatibility. This S2 grind camshaft is designed to optimize mid to high RPM power delivery, making it an ideal upgrade for enthusiasts seeking enhanced engine performance. Each camshaft in the KK3766 set is ground from a new chill cast billet and finished using the same meticulous procedures employed in Cosworth's extreme-level race engines. The specifications for this set include an intake duration of 278 degrees with a lift of 10.65mm, and an exhaust duration of 274 degrees with a lift of 10.28mm. These parameters are tailored for the North American specification EJ257 engine, providing a noticeable increase in horsepower and torque where it matters most. As a direct replacement for the factory camshafts, the KK3766 set ensures a straightforward installation process for those familiar with engine component replacement.