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57i Series Kits > Performance Intake Kit

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57I-2503
 
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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 Height6.344 in (161 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
California RestrictedNot legal for sale or use in California
Clamp MaterialStainless Steel
Clamp StyleRegular
Clamps Included1
Intake Pipe Color / FinishBlack
Product Box Height12 in (305 mm)
Product Box Length22 in (559 mm)
Product Box Width14 in (356 mm)
Product Style57i Series International Kits
Replacement FilterRC-70031
Street Legal In All US States No
TUV Approved (Europe)No
TypeGen II
Weight5.2 lb (2.3 kg)


Customer Feedback


Used this and still using on 2005 GMC Sierra 5.3l base model. Increased mileage 2.1 normal driving, 1.1 mile heavy foot driving. Also engine sounded smoother at idle and smoother acceleration. Have used with Ford ,Nissan and Isuzu, all with a same effect.
Ron Mcneal, Lewisville, Texas
I replaced my air filter in my ford f-150 with the K&N filter and noticed an improvement right away. I have had it for a couple of weeks now and have also noticed my fuel mileage has gone from 18.7 mpg to 19.9-21.6 mpg (depending on highway vs city driving). I have used K&N filters in my 1994 corvette as well in the past. Great purchase that pays for itself quickly.
Jeff T, Nebraska
I bought a K&N filter shortly after buying my 1997 Ford F-250 deisel (new). I just replaced the filter (the rubber had a crack in it) with 225,000 miles on it. Great product and I believe it boosted power as well (although it is the only filter I have had on that truck). Now I will use the old filter if the new one needs cleaning If I don't have time to clean and re oil the other one, if i need to go somewhere. Great product.
Jim Reed, Longmont, Colorado