Cobb 15-20 Subaru WRX Air Oil Separator

This is the COBB Air Oil Separator specifically designed for the 2015-2020 Subaru WRX. Its main job is to help reduce the amount of oil vapor that gets recirculated into your engine's intake system. Over time, especially in turbocharged and direct-injected engines like the WRX, oil can build up in the intake tract, which can lead to reduced performance and potential carbon buildup on intake valves.

COBB's design for this Air Oil Separator (AOS) focuses on effectively capturing and separating oil from the crankcase vapors before they re-enter the intake. This is achieved through a well-built internal baffling system. The kit includes all the necessary components for a direct installation, meaning it's designed to bolt right up to your WRX's factory mounting points without requiring any modifications. This makes the installation process more straightforward for those looking to improve their engine's internal cleanliness and maintain optimal performance.

By installing this AOS, you're taking a proactive step in engine maintenance. It helps keep your intake system cleaner, which can contribute to more consistent engine operation and potentially extend the life of certain engine components. The kit comes with everything needed for installation, so you can get it fitted and start benefiting from a cleaner intake tract relatively quickly. It's a popular choice for WRX owners who want to keep their engines running at their best.