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K&N 57-0668 Air Intake

57i Series Kits > Performance Air Intake System
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   4 Customer Reviews
  • 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®
The K&N 57-0668 Air Intake fits some Honda Civic VIII models. See vehicle applications link for details.
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 Height4.685 in (119 mm)
Air Filter Large End Diameter5.197 in (132 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
California RestrictedNot legal for sale or use in California
Clamp MaterialStainless Steel
Clamp StyleMini
Clamps Included3
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-5134
Street Legal In All US States No
TUV Approved (Europe)No
TypeGen I
Weight2.1 lb (0.9 kg)

K&N 57-0668 Air Intake Product Reviews

Saturday, October 15, 2016 - Part 57-0668
Love it. Made a big difference to the type S Civic.

Northern Ireland
Wednesday, October 5, 2016 - Part 57-0668
Really quick delivery. Everything you need in the box. The instructions were simple to follow. The sound the induction kit makes is just amazing. Will put a smile on your face while your driving.

Cumbria, United Kingdom
Wednesday, August 31, 2016 - Part 57-0668
Relatively easy to fit. Can feel an increase in power and the car has a nice deep rumble to it now.

Darren Mcilroy
Kirkcaldy, United Kingdom
Sunday, June 26, 2016 - Part 57-0668
Best investment I ever made. This intake completely changed the performance of my 2008 Civic EX. It gave me a huge amount more horse power, and the exceleration is exciting. I give it five stars plus.

Ashland, Oregon