Cobb 08-14 Subaru WRX / 08-20 STI Air Oil Separator

This is the COBB Air Oil Separator specifically designed for your 2008-2014 Subaru WRX and 2008-2020 STI. In turbocharged boxer engines like yours, the crankcase can build up pressure and push oil vapor into the intake system. This oil can then condense, leading to carbon buildup on intake valves and potentially reducing engine performance over time. The COBB Air Oil Separator is engineered to effectively capture this oil vapor before it reaches your intake, keeping your engine's internals cleaner.

COBB has developed this Air Oil Separator with a focus on effective separation and straightforward installation. It features a well-built aluminum construction that is durable and resistant to engine bay temperatures. The internal baffling and coalescing media work together to trap oil droplets from the crankcase gasses. This system is designed to integrate seamlessly with your vehicle's existing PCV system, and it includes all the necessary hardware for a direct bolt-on installation, meaning no cutting or welding is required. The kit also includes a drain valve for easy maintenance, allowing you to empty the collected oil without removing the entire unit.

Keeping your engine's intake tract clean is crucial for maintaining optimal performance and longevity, especially in high-performance turbocharged vehicles. By installing the COBB Air Oil Separator, you're taking a proactive step to protect your engine from the detrimental effects of oil contamination. This is a solid option for Subaru owners looking to improve their engine's health and ensure it runs at its best for years to come.