Moroso 13-18 Ford Focus ST Air/Oil Separator Catch Can - Small Body - Billet Aluminum

This is the Moroso small body air/oil separator catch can, designed specifically for the 2013 through 2018 Ford Focus ST. Its main job is to catch oil vapors and blow-by gasses from the PCV system before they get recirculated back into your engine's intake. Over time, these vapors can turn into sludge and gunk up your intercooler piping and intake manifold, which isn't good for performance or engine cleanliness.

Moroso built this catch can from solid billet aluminum, which is a strong material that also looks sharp under the hood. The small body design is intended to fit in tighter spaces, making installation a bit more straightforward on the Focus ST. By trapping the oil, this catch can helps keep your engine's intake tract cleaner, potentially leading to more consistent performance and making future maintenance easier. It's a well-built piece that addresses a common issue on turbocharged direct-injected engines like the one in your Focus ST.

When installing, you'll want to make sure you have a good set of tools and refer to the manufacturer's instructions for the best placement and connection points. It's a good idea to check the catch can periodically and drain any accumulated oil, typically every few thousand miles depending on how hard you drive your car.