The COBB Air/Oil Separator, developed in collaboration with IAG Performance, is installed within the crankcase ventilation system of your Subaru, preventing oil vapors from entering the intake system.
Key features include a 1-liter holding capacity, integrated ORB ports, a compact cast aluminum body with a black powdercoat finish, heat shielding on the oil return lines and crankcase breather, a coolant bleeder valve, a bespoke COBB color combination, and a laser-etched COBB logo.
The Subaru FA engine features three crank pressure venting ports, each connected to the AOS for rapid and efficient pressure excavation, reducing overall system pressure.
The unique shape and coolant routing system of the AOS maximize oil separation and evaporation, ensuring optimal performance.
Notable features include a compact cast aluminum tank design, bespoke COBB anodizing on caps, a wrinkle black powder-coated canister, and a laser-etched COBB logo.
