On Most Orders Over $300*
On Most Orders Over $300*
Built for Subaru enthusiasts looking to enhance their vehicle’s reliability and performance, the IAG Air Oil Separator (AOS) collection offers premium aftermarket solutions designed to reduce oil blow-by and improve engine efficiency. These parts are built for your Subaru model to help maintain cleaner intake air and extend engine life.
In this collection, you’ll find a wide selection of IAG AOS units engineered for optimal oil separation, better crankcase ventilation, and improved overall engine response. Whether you’re aiming for enhanced power delivery, reduced oil consumption, or a cleaner engine bay, these upgrades deliver noticeable benefits.
Key features include: - Durable construction for long-lasting performance - Improved oil catch efficiency - Enhanced engine reliability and cleanliness - Designed for easy installation and fitment
Shop IAG AOS upgrades for your Subaru at Subimods.
Improving your Subaru’s engine performance and reliability starts with managing crankcase pressure effectively. Our IAG AOS collection offers tailored Air Oil Separator solutions designed specifically for 2020-2024 Subaru models, helping you maintain cleaner engine internals and smoother operation. Whether for daily driving or spirited track use, these upgrades enhance your Subaru’s efficiency and longevity.
The IAG Air Oil Separator reduces crankcase pressure by separating oil vapor from the blow-by gases before they re-enter the intake system. This prevents oil buildup in the intake tract, which can degrade performance and cause carbon deposits over time. By maintaining cleaner airflow, the AOS helps your engine run more efficiently and respond better under boost.
Selecting the right AOS depends on your driving style and goals. IAG offers various configurations that balance oil separation efficiency with crankcase ventilation flow. For daily drivers, a standard AOS provides excellent protection without restricting airflow. For track or high-boost applications, upgraded models with enhanced filtration and larger capacity ensure optimal performance and durability.
Our collection features a comprehensive range of IAG AOS parts engineered to fit your 2020-2024 Subaru perfectly. These upgrades are trusted by enthusiasts to reduce crankcase pressure, prevent oil contamination, and keep engines running cleaner for longer. Browse our selection at Subimods to find the right AOS solution that matches your performance needs and driving habits.