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57i Series Kits > Performance Intake Kit

 List Price: $222.71
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57-0441
 
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K&N 57i Series Induction Kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range. The extra surface area of these open-air air filters provide even more airflow at lower restriction than a K&N O/E replacement filter which is always limited to the size of the factory air box. The larger air filter also captures and holds more dirt increasing its service life before a cleaning is required (up to 100,000 miles). The filter is either directly attached to the engine carburetor or throttle body or indirectly through a tube assembly running from the filter to the engine. All adapters are made from high quality materials such as steel, aluminum, silicon or reinforced nylon to ensure long life. 57i Intakes are not legal for use in California and other US States adopting California emission standards. [MORE]
Available Information
Installation Instruction Sheet
57-0441 Vehicle Applications


Part 57-0441 Product Specifications
Product Style: 57i Series International Kits
Replacement Filter: RC-1681
Street Legal In All US States: No
TUV Approved (Europe): No
Type: Gen I
Intake Pipe Color / Finish: Black
California Restricted: Not legal for sale or use in California
Weight: 3.2 lb (1.4 kg)
Product Box Length: 9 in (229 mm)
Product Box Width: 9 in (229 mm)
Product Box Height: 9 in (229 mm)



Accessories
99-5050.jpg
99-5050 - Filter Care Service Kit - Squeeze
RC-1681.jpg
RC-1681 - Replacement Filter

Customer Feedback      Be the first to review part 57-0441

Great stuff, great price. My first kit lasted about 15 applications which is less than a buck per time. Just apply the cleaner and rinse off. Let the filter dry and spray on the oil and you're done. Easier than driving to the store to get another air filter which I will never do again. Can only imagine how much money I've saved never having to buy another air filter over the years. Not to mention the increased air flow, which you can literally feel when you install for the first time, which increases performance. Over 128,000 miles and counting. My K&N filter is helping my Ford Ranger get to my goal of 200,000. Thanks guys.
Tim, Rochester, New York
I installed the product as shown and immediately noticed a huge improvement. The product works great and is simple to install. I have used your products in the past and they do exactly as shown. It is so great to buy a product, install it and it actually performs like the advertisement. I would say that the video on YouTube did make it super easy to install. I have recommended the product to several of my Ford friends and they are purchasing the product as well. Thank you again.
Brian Steely, Dallas, Texas
Excellent service from K&N and excellent fit in my 2014 Ford 2.0L Escape. I run without the cap and have seen a consistent 0.5 MPG improvement along with better throttle response.
Don Perretti, San Diego, California

K&N 57-0441 fits the following:
2004 FORD FOCUS ST170 2.0L L4 F/I - All Street Legal In All US States: No TUV Approved (Europe): No
2003 FORD FOCUS ST170 2.0L L4 F/I - All Street Legal In All US States: No TUV Approved (Europe): No
2002 FORD FOCUS ST170 2.0L L4 F/I - All Street Legal In All US States: No TUV Approved (Europe): No