IAG Performance offers a complete lineup of Subaru oiling system parts for WRX, STI, Legacy GT, Forester XT, and BRZ platforms. Designed for EJ25, FA20, and FA24 engines, our catalog includes air oil separators, catch cans, oil coolers, pans, pumps, pickups, filters, and high-quality engine oil to support proper lubrication and engine reliability. Whether you're upgrading a street-driven Subaru or preparing for track use, these components help maintain oil control and long-term performance. Shop leading brands like Blouch, Cusco, Greddy, IAG Performance, Mishimoto, Motul, Perrin, Radium Engineering, Subaru, WIX, and more.
Air Oil Separators
Shop Subaru Air Oil Separators (AOS) at IAG Performance for WRX, STI, Legacy GT, Forester XT, and BRZ models (2002–2023). Designed for EJ25, FA20, and FA24 engines, our selection includes AOS kits, lines, fittings, conversion kits, brackets, and hardware to improve crankcase ventilation and reduce oil blow-by. Whether you're protecting a daily-driven Subaru or a high-performance build, these AOS systems help maintain cleaner intake systems and long-term engine reliability. Featuring trusted brands like IAG Performance, Perrin Performance, and Radium Engineering.