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57i Series Kits > Performance Intake Kit

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57I-6501
 
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K&N 57i Generation II Induction Kits are built primarily for European vehicles. They come with K&N's Million Mile Limited Warranty™. These intake kits use only non-metallic rotationally molded tubes that can reduce air temperature and decrease intake sound over a metal tube. Restriction can exist BETWEEN an air filter and the engine reducing the benefit of a K&N Air Filter alone. The weakest link in the airflow "chain" robs a vehicle of its natural horsepower. Often that weak point is the factory air path leading to the engine. K&N Air Intake Kits virtually eliminate air path restriction by replacing the air filter and the entire air path to the engine. The aerodynamically engineered tube drives a massive amount of air into an engine, which translates into POWER. 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 US 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 Height5.938 in (151 mm)
Air Filter Large End Diameter5.5 in (140 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
California RestrictedNot legal for sale or use in California
Clamp MaterialSteel
Clamp StyleMini
Clamps Included6
Couplers Included1
Intake Pipe Color / FinishBlack
Product Box Height10 in (254 mm)
Product Box Length20 in (508 mm)
Product Box Width10 in (254 mm)
Product Style57i Series International Kits
Replacement FilterRC-5053
Street Legal In All US States No
TUV Approved (Europe)No
TypeGen II
Weight5.6 lb (2.5 kg)


Customer Feedback


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.
Dave, Bangkok, Thailand
Congratulations on a fantastic product. I own a Citroen Xantia HDI 2ltr diesel, now semi retired, after 51 yrs on the spanners, also I tow a caravan 15ft. I am really pleased with my K&N filter, I fact I have just purchased a Daihatsu Sirion 1ltr petrol car ,so am going to put a filter in this one as well, as petrol in the Uk is £1/04 a ltr, so one has to get the most out of your petrol as possible.
Jim Edwards, United Kingdom