Suitable for： 2009-2018 Ford Focus, 2012-2018 Ford Focus ST, 2015-2018 Ford Focus RS，13-19 Ford Escape / 14-16 Transit Connect / 15-19 MKC Fits 1.0L 1.5L 1.6L 2.0L 2.3L Models Washable & Reusable： Dry air filter, no need to spray oil,does not affect the air flow sensor.Flows more air without sacrificing filtration , can continue to use 40,000 to 50,000 miles, flush with water, natural dry can continue to use, life span of more than 200,000 miles Engineered Power: A high performance car engine air filter suitable for Ford Focus ST/RS , can increase the sound of the Turbo and improve throttle response Installation:Is very simple, just need to remove the original, align the installation, and then tighten the hose clamp Unique feature：YS Racing air filter provides two flow modes, the filter end cover is opened, turbo sounds come through a lot clearer, delivers more air for faster throttle response, and you can experience a strong sense of push-back when driving. When the end cap is closed, the turbo sounds become smaller and the engine will run smoothly. YS provides a hose clamp to secure Suitable for： 2009-2018 Ford Focus, 2012-2018 Ford Focus ST, 2015-2018 Ford Focus RS，13-19 Ford Escape / 14-16 Transit Connect / 15-19 MKC Fits 1.0L 1.5L 1.6L 2.0L 2.3L Models,can increase the sound of the Turbo and improve throttle response