K&N 57-0443

57i Series Kits > Performance Intake Kit
List Price: $226.85
Your Price: USD $124.99

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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 Information on K&N 57i Induction Systems]
  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Replaces entire factory air intake system
  • Not legal for highway use in states adopting California emission regulations
  • Washable and reusable lifetime air filter
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • Easy to install, usually in 90 minutes or less
  • K&N Million Mile Limited Warranty®

Product Specifications

Air Filter ColorRed
Air Filter Height5.906 in (150 mm)
Air Filter Inside Diameter0.375 in (10 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeNot Flanged
California RestrictedNot legal for sale or use in California
Clamp MaterialStainless Steel
Clamp StyleRegular
Clamps Included2
Flange Inside Diameter4 in (102 mm)
Intake Pipe Color / FinishBlack
Intake Pipe MaterialFlex Hose
Product Box Height9 in (229 mm)
Product Box Length9 in (229 mm)
Product Box Width9 in (229 mm)
Product Style57i Series International Kits
Replacement FilterRF-1682
Street Legal In All US States No
Top StyleCarbon Fiber
TUV Approved (Europe)No
TypeGen I
Weight2.8 lb (1.3 kg)

Customer Feedback

Be the first to review part 57-0443
Great drop-in filter for Audi A3 that bumps up fuel economy a bit and performs extremely well compared to disposable filters.

Chicago, IL
I use K&N in everything I own, three Harley motorcycles and three Audi cars. The improved air flow rate instantly gives a kick where you really need it, acceleration

Joe Galdo
New Jersey
Well I have been using K&N panel air filters for many years. I am a taxi in Cambridge, done 449,000 miles on a Mondeo diesel estate, 340,000 on a audi A6 diesel estate. Now just got a Toyota Avensis 2.0 diesel estate 10,000 miles, all these miles on above cars I had from day one a K&N air filters. Yes as soon as you fit air filter you notice the difference in slight more power, smoother, its a no brainer to buy and fit. Work it out about every 40,000 miles need to buy cleaner and clean the filter not because its noticeable driving car but it just looks dirty, every service you do not buy a air filter. Only a few services and you got your money back on the cost of K&N air filter.

Peter Rule
Cambridge, United Kingdom