K&N 57-0323

57i Series Kits > Performance Intake Kit
List Price: $232.91
Your Price: USD $127.99

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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 Height6.75 in (171 mm)
Air Filter Large End Diameter5.75 in (146 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 Included3
Intake Pipe Color / FinishBlack
Intake Pipe MaterialRubber
Product Box Height9 in (229 mm)
Product Box Length9 in (229 mm)
Product Box Width9 in (229 mm)
Product Style57i Series International Kits
Replacement FilterRC-8480
Street Legal In All US States No
TUV Approved (Europe)No
TypeGen I
Weight2.9 lb (1.3 kg)

Customer Feedback

Be the first to review part 57-0323
I found out that I can use the 57-0323 K&N air filter intake on my Subaru Forester S-Turbo 2.0 year 2000 (I know,old car).

The Subaru Impreza GT from 98 to the WRX 00,has the same MAS air sensor and air tubes.This fits directly in my Forester (European model)

This works perfect, great sound on turbo when changing gears.
It works much better than the panel filters....

Great Product...:)

This filter went in easily to my 2002 Subaru Impreza and I can feel a nice improvement in the power and sound of the engine. It just crises right up hills now and rarely downshifts. I think the extra few horsepower gained really helped this light little car.

Lance Holborn
South Dakota
Best oil filter out there. I will not use any other! Thany you K&N for making such awesome products. I also have a K&N typhoon cold air intake for my 2003 Subaru Impreza WRX.

Buckeye, Arizona