Engine Air Filter for Ford Focus ST RS 2009-2018

The YS Racing cold air filter engineered for the Ford Focus ST/RS from 2009-2018 offers an amazing enhancement to your vehicle's performance. This high-quality air filter is designed to increase the sound of the turbo and improve throttle response, providing a more engaging driving experience.

Featuring a washable and reusable dry air filter, there is no need to spray oil, and it does not affect the air flow sensor. This filter allows for increased airflow without sacrificing filtration, enabling you to enjoy its benefits for 10,000 to 15,000 miles. Simply flush it with water and allow it to air dry, and you can continue using it for a lifespan of over 200,000 miles.

Constructed with a 4-layer non-woven fabric, the YS Racing air filter provides excellent filterability. The PU material is resistant to high temperatures without deformation, and the aluminum mesh will not rust, ensuring long-lasting performance.

The mounting structure includes clamps for a secure installation, providing added peace of mind. Additionally, the package includes installation tools, making the process straightforward and hassle-free.

One of the unique features of this air filter is the ability to choose between two flow modes. When the filter end cover is opened, the turbo sounds are amplified, and you'll experience a more responsive throttle and a stronger sense of push-back while driving. Conversely, when the end cap is closed, the turbo sounds are reduced, and the engine will run more smoothly.

To validate the performance of this air filter, a video experiment has been conducted, demonstrating its ability to provide a higher flow rate to the engine at the same air flow rate.

The YS Racing cold air filter is compatible with a wide range of Ford and other vehicle models, including the 2009-2018 Ford Focus, 2012-2018 Ford Focus ST, 2015-2018 Ford Focus RS, 2013-2019 Ford Escape, 2008-2013 Ford Kuga, 2014-2016 Transit Connect, 2015-2019 MKC, 2010-2020 Ford C-Max, 2010-2015 Mazda 5, 2012-2015 Volvo V40 II, 2010-2014 Volvo V70 III, 2007-2013 Volvo C30, 2009-2013 Mazda 3, 2007-2012 Volvo S40 II, 2007-2012 Volvo V50, and 2008-2009 Volvo C70 II.

In conclusion, the YS Racing cold air filter is an exceptional choice for Ford Focus ST/RS owners, offering increased turbo sound, improved throttle response, and a long-lasting, washable, and reusable design. With its impressive performance and compatibility, this air filter is sure to enhance your driving experience.

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