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Enhance horsepower and acceleration with reduced airflow restriction.
K&N's 57S Series Cold Air Intake is designed to significantly improve engine performance by minimizing airflow restriction inherent in factory air intake systems. This product replaces the original air filter housing with a fully enclosed injection molded air box that houses a reusable K&N air filter, ensuring durability and consistent performance. The design allows for easy access to the filter for maintenance, featuring a removable lid that simplifies cleaning and upkeep.
The installation process is straightforward, as the 57S Series is engineered to utilize existing factory holes and mounting points, eliminating the need for additional hardware, cutting, or drilling. This feature not only saves time but also ensures a secure fit. The air box is constructed from high-quality plastic, providing strength and longevity while maintaining a lightweight profile.
With K&N's Million-Mile Limited Warranty, users can trust in the reliability and effectiveness of this performance air intake system. It is important to note that this product is not exempt from California Air Resources Board regulations, and users should refer to the K&N application guide for specific fitment details.
Features
- Increases Horsepower And Acceleration By Dramatically Reducing Air Flow Restriction Caused By The Original Factory Design
- Uses A Fully Enclosed Air Box Assembly With A Removable Lid For Easy Access To The Filter When Cleaning Is Required
- Injection Molded For Extra Strength, Consistency And Durability
- Installation Is Easy As They Are Specifically Engineered To Use Factory Holes And Mounting Points
Specifications
- Manufacturer: K & N Filters
- Manufacturer Part Number: 57S-4000
- Recommended Use: Performance
- Tube Finish: Without Tube
- Tube Color: Without Tube
- Tube Material: Without Tube
- Filter Color: Red
- Estimated Install Time (Hours): 1
- Filter Material: Cotton Gauze
- Protection Type: Air Box
Compatibility / Fit
- 2015-2018 Ford C-Max
- 2013-2018 Ford Focus
Technical Documents
Shipping & Returns
- This product ships within the continental USA only.
- This product typically ships within 1 to 3 business days.
- Returns are accepted within 30 days for items in like-new condition. For complete details, please see our return policy.
