Moroso AOS Engine Oil Catch Can for Focus ST (85665) Walbro or naturally aspirated Impreza models

or naturally aspirated Impreza models

• High Performance

performance and quality

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Moroso AOS Engine Oil Catch Can for Focus ST (85665) Walbro or naturally aspirated Impreza modelsMoroso aluminum engine oil catch can (also called an AOS or air oil separator) fits the 2013 2018 Focus ST models. The small compact size features a black anodized finish with a two piece body that unscrews for easy draining. Install instructions are linked below. Vehicle Fitment: 2013 2018 Ford Focus ST Features: Captures excess crankcase vapors Stops residual oil mist and moisture from reentering the intake Increases engine performance from cleaner