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K&N 57-2566 5.0 out of 5 stars 1 Customer Review
57 Series FIPK > Performance Intake Kit

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57-2566
 
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The K&N 57-2566 FIPK air intake system replaces the restrictive factory air filter and air intake housing in some Ford Mustang models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your Mustang’s 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 57-2566 air intake comes with a chrome topped K&N high-flow air filter and a heat shield that installs into the previous air box space. Air is directed through an aerodynamically engineered 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 hose. The oversized conical 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 the existing factory mounting points. The tools needed are a screw driver, ratchet set and wrench. 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 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)
  • Replaces entire factory air intake system
  • Free-flowing high density polyethylene tube
  • Easy to install, usually in 90 minutes or less
  • Washable and reusable lifetime air filter
  • K&N Million Mile Limited Warranty
Available Information
Installation Instruction Sheet
57-2566 Vehicle Applications
Dyno Chart - 2005 Ford Mustang 4.0L - 7.54HP Increase
News Story - Add Power to the 2005, 2006 and 2007 Mustang V-6 with K&N Fuel Injection Performance Kit
News Story - Simple Ford Mustang Add-ons for Performance and Power


Part 57-2566 Product Specifications
Product Style: 57 Series FIPK
Estimated Horsepower Gain: 7.54 HP @ 4996 RPM
Replacement Filter: RF-1048
Air Filter Color: Red
Air Filter Outlet Shape: Round
Street Legal In All US States: Yes
Air Filter Height: 6 in (152 mm)
TUV Approved (Europe): No
Air Filter Material: Cotton Gauze
Clamps Included: 5
Clamp Material: Stainless Steel
Clamp Style: Regular
Couplers Included: 2
Type: Gen II
Mass Air Flow Sensor Adapter Included: Mass Air Flow Sensor Adapter Included When Required
Intake Pipe Color / Finish: Black
Intake Pipe Ports: All intake tube ports needed for the specified applications are included
Vacuum Tubing Included: Yes
Air Filter Large End Diameter: 7.5 in (191 mm)
Weight: 8.8 lb (4 kg)
Product Box Length: 22.25 in (565 mm)
Product Box Width: 14.25 in (362 mm)
Product Box Height: 12.5 in (318 mm)


Horsepower gains based on similar vehicle dynamometer test. Results will vary.


Product Reviews      Review part 57-2566

 Put this product on my wife's car which has almost 100,000 miles and was running very sluggish and the mileage was not what it once was. Put the assembly on the car and my wife noticed an immediate improvement in performance and it eliminated the stumble at about 2500 RPM. Changed the oil and filled up with premium gas and she drove it as she normally does and the mileage improved from 18.1 to 22.2 mpg without anything else being done to the car. We checked it over 3 full tanks and this is was the average. Wife is very happy with the product and she suggested I put it on my truck. Very happy with the results and the quality of the product. Did make it more difficult to close the hood do to the do to the gasket around the heat shield and had to work on the location of this part. Once I had it aligned no other issues. Went on a long trip and saw 28.2 mpg on the open road the the car is running better everyday.
Jeff Bowen, South Carolina
 Could not be happier with the new intake. Only took me about a half hour to install... instructional pictures are small, but adequate... I have no idea if I got more power, or better MPG... but the improvement in the throttle response is worth far more than the cost of the unit. My car is a V6 w/ 5 spd manual, and I've always thought the clutch was too touchy, making it hard to drive away from a stop... well, it wasn't the clutch at all, it was poor throttle response. Installing the K&N 57-2566 has improved drive-ability 100%... I no longer have to phutz with the gas pedal to pull away from a stop... if I got more power and mileage, that's just a bonus!
Steve, Bellevue, Washington