AIRTEC Motorsport K&N 57S Filter Element
The AIRTEC Motorsport K&N 57S Filter Element is designed to increase horsepower and acceleration by reducing air flow restriction caused by the original factory design. It replaces the factory air filter housing with a fully enclosed injection modified air box containing a reusable K&N air filter. Installation is easy as it is specifically engineered to use factory holes and mounting points, requiring no additional hardware, cutting, or drilling.
This filter element is supplied with a rubber bung, which, when removed, increases waste gate turbo chatter noise. If you prefer a quieter driving experience, the rubber bung can be easily replaced.
The K&N 57S Filter Element comes with K&N’s Million-Mile Limited Warranty, ensuring its durability and performance. It is compatible with the 2016 Focus Mk3 RS.
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AIRTEC part no: ATIKFO13
- K&N 57S Filter Element