K&N 57-0540

57i Series Kits > Performance Intake Kit
List Price: $262.95
Your Price: USD $144.99

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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 in (152 mm)
Air Filter Large End Diameter5.375 in (137 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeNot Flanged
California RestrictedNot legal for sale or use in California
Clamp MaterialSteel
Clamp StyleRegular
Clamps Included2
Couplers Included1
Intake Pipe Color / FinishBlack
Intake Pipe MaterialHigh-Density Polyethylene
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-4550
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 57-0540
Great product and it fits perfectly. It's great that they have a filter for a 1982 Citroen CX.

G McNulty
Llanelli, Wales
Not the first time that I use your products ( Volvo 460 & Citroen BX with carburators / K&N - 56-1651,Renault Clio 1.2 / K&N RX extreme series ), and now this one in Fiat 500L with 1.4 engine. All are great, I hope you'll make oil and fuel filters to for my Fiat. Sorry on my english, whish you all the best.

Mladen Tesic ( Teshech )
Serbia, Zrenjanin
I replaced the stock filter with K&N 33-2539 a month ago for my Citroen Xantia 3.0i V6 194 hp, myself.  Since then I have found the diffrence in a way that never happened before. It roars and hops. Also, acceleration at higher speed (140-180 kph) is fantastic, really. Worth investing for driving pleasure.  No other information has been collected yet.

Bangkok, Thailand