GSC P-D 06-07 Subaru WRX 2.5L/ 04-07 Subaru STi S1 Cam - Left Intake Only

This is the GSC Power Division S1 camshaft, specifically the left intake camshaft for your 2006-2007 Subaru WRX with the 2.5L engine, or your 2004-2007 Subaru STi. If you're looking to fine-tune your engine's breathing for improved performance, a camshaft upgrade like this can make a notable difference in how your engine performs, especially at higher RPMs.

The S1 profile is designed to offer a noticeable bump in power without requiring extensive modifications to your valvetrain. It's a well-built component that aims to improve airflow into the cylinders, which can lead to better throttle response and increased horsepower. This camshaft is intended for the left intake position, so make sure it's the specific piece you need for your build. It's a solid option for Subaru owners looking for a reliable performance camshaft.

Please be aware that this camshaft is not CARB approved and cannot be shipped to California. Always consult your vehicle's service manual or a trusted mechanic for installation procedures and any other components you might need to complete the job.