K&N 57-2559

57 Series FIPK > Performance Intake Kit
List Price: $501.43
Your Price: USD $276.99

You Save 44.8%

Facebook   Google+   Twitter   Pinterest  


In Stock & Ready to Ship!
  Free Ground Shipping!

The K&N 57-2559 FIPK air intake system replaces the restrictive factory air filter and air intake housing in some Ford Focus models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine’s RPM range. The 57-2559 air intake comes with a K&N XStream Top air filter designed for higher air flow and durability. The air filter installs into the previous air box space and directs air through an intake tube into the engine’s throttle body for a guaranteed power gain. The tube accommodates the factory mass air sensor and crank case vent line. The oversized cone shaped air filter comes with a water repellent DryCharger filter wrap to protect the filter from moisture. The air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install usually in 90 minutes or less using existing factory mounting points requiring commonly available tools to do the job. K&N 57 Series FIPK's are street legal in all 50 US states and come with K&N's Million Mile Limited Warranty.

[More Information on K&N FIPK Air Intake Systems]
  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • Easy to install, usually in 90 minutes or less
  • Free-flowing high density polyethylene tube
  • Replaces entire factory air intake system
  • Washable and reusable lifetime air filter
  • K&N Million Mile Limited Warranty

Product Specifications

Estimated Horsepower Gain11.85 HP @ 5797 RPM
Air Filter ColorRed
Air Filter Height5.563 in (141 mm)
Air Filter Large End Diameter6 in (152 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
Clamp MaterialStainless Steel
Clamp StyleRegular
Clamps Included3
Couplers Included1
Intake Pipe Color / FinishBlack
Intake Pipe MaterialHigh-Density Polyethylene
Product Box Height12.5 in (318 mm)
Product Box Length22.25 in (565 mm)
Product Box Width14.25 in (362 mm)
Product Style57 Series FIPK
Replacement FilterRX-4990
Street Legal In All US StatesYes
TUV Approved (Europe)No
TypeGen II
Weight7.1 lb (3.2 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

Customer Feedback

Be the first to review part 57-2559
Wow I can't believe how good this air filter is. I drive a 2014 Ford Focus Hatch automatic with dual clutch transmission. I bought this air filter based on the recommendation of a friend. I really can't believe what a difference this air filter has made in my vehicle. This air filter has great improved my low end torque and acceleration. It has not made into a sports car but there definitely is a noticeable improvement. Periodically I would get that transmission stutter from the dual clutch transmission, not often but once in a while. With this new air filter I have not experienced that once. This air filter has worked so well I am thinking of investing in the air intake system for $299. There is no reason you shouldn't have on of these filters in your car. A life time part for $60. Instead of paying $20 every 10,000 miles. This really is a no brainer.

Boston, Massachusetts
Replaced the stock air filter on my 2001 Ford F150 with a K&N replacement filter. I noticed an immediate increase in responsiveness and from the first full tank an increase in my gas mileage. Since this is vehicle is used more around town the gas mileage is low but I increased by at about 2 MPG. Considering a standard air filter cost about $40 per replacement this will be a financial savings after two replacements. I typically replace the filter ever 8k miles since I do some dirt road travel, this will be an easy wash and reinstall. Highly recommend these filters, should have done this sooner. I have replaced the standard air filter on my 2014 Dodge Charger with the same results and will replace the filter on my daughters 2013 Ford Focus shortly.

Windham, New Hampshire
I love this air filter, the way it makes my 2014 Ford Focus ST sound and perform is amazing. Can't thank my amazing girlfriend enough for getting me this, this past Father's Day. Awesome product.

Paul Waters
Houston, Texas