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57-0373
$118.99 USD
MSRP $215.99 44.9% Off
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K&N 57-0373 Air Intake

57i Series Kits > Performance Intake Kit
  • 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®
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 provides even more airflow at lower restriction than a K&N O/E replacement filter which is 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]

Product Specifications

Air Filter ColorRed
Air Filter Height2.75 in (70 mm)
Air Filter Large End Diameter6.75 in (171 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
Base Outside Diameter6.75 in (171 mm)
California RestrictedNot legal for sale or use in California
Clamp MaterialStainless Steel
Clamp StyleRegular
Clamps Included3
Flange Inside Diameter3.875 in (98 mm)
Flange Length0.75 in (19 mm)
Flange Offset0.375 in (10 mm)
Height2.75 in (70 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 FilterRC-4840
Street Legal In All US States No
Top Material/FinishChrome
Top Outside Diameter5.875 in (149 mm)
Top StyleMetal
TUV Approved (Europe)No
TypeGen I
Weight2.3 lb (1 kg)

Customer Feedback

I've used a K&N air filter on my 2006 SEAT CORDOBA ( Volkswagen group ) with a 1.4 liter engine for 4 years. The product made the tiny 75 Hp VW engine run much smoother with a roaring race-car sound at full throttle and with better fuel consumption (about 6 liters/100 km). Great product. Now I am planing to install one on my new Honda Civic as well.

Rp
Hungary
Very easy to order. Was able to track the shipment. Installation was very easy and took about 35 minutes. The first test drive was very impressive, slight increase of volume from intake but nothing that distracts from conversation inside vehicle. The push back in the seat was felt immediately. Very happy with the product and the ease of ordering. Would recommend to anyone who wants a performance increase without breaking the bank.

Robert
Yuma, Arizona
Great buy! No need to spend $500 for the same thing from (Brand Name). Looks great, sounds good (you can hear heaps of air being sucked through it when you give it gas) and the feel in the seat of the pants tickles me pink. Very easy to install, no issues.

Codrin
Mississippi