The 57 Series Generation II air intake, also referred to as an FIPK, is K&N’s ultimate performance product. These performance intakes are designed to increase power by as much as 10%. 57 Series FIPK’s are CARB exempt, street legal in all 50 US states, come with K&N’s Million Mile Limited Warranty and are guaranteed to increase power. K&N air intake systems replace your vehicle’s restrictive factory air filter and air intake housing. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This translates into more power and torque for your vehicle. The air filters on these kits are washable and reusable. Most of our air intake systems are easy to install using tools commonly available (see installation instructions).

Designed to provide increased horsepower, the K&N 57-2556 Second Generation Fuel Injection Performance Kit is a quick solution for vehicle owners who are looking for an increase in reliable power. Street legal, installable in 90 minutes or less and built around K&N’s High-Flow technology, which utilizes a special oversized and washable cotton gauze air filter and special cold air intake, nonmetallic tubes, the 57-2556 drives a massive amount of air into an engine, which translates into power affordable on virtually any budget.

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K&N 57-2556 Fuel Injection Air Intake Performance Kit

Affordable, street legal horsepower upgrade.
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Horsepower increase based on installation of a K&N 57-2556 Fuel Injection Air Intake Performance Kit

Measurable improved performance.
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Detailed installation instructions and parts list for the K&N 57-2556 Fuel Injection Air Intake Performance Kit

Quick and easy installation.
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How High-Flow Technology Works
How does the K&N 57-2556 increase horsepower? By eliminating airflow obstruction in your engine. Restriction of air flow between an air filter and an engine robs even the most powerful engine of horsepower. K&N air intake kits virtually eliminate air path restriction by replacing the standard air filter and the entire air path to the engine. The aerodynamically engineered conduit that makes up the 57-2556 drives a massive amount of air into an engine, which translates into power. This conduit begins with an oversized conical high-flow air filter. This larger filter can fit into the engine compartment using factory holes and mounting points because the K&N 57-2556 replaces your stock intake tube, and air box. This provides more airflow at lower restriction than a standard filter, limited by the size of the factory air box. The oversize air filter also captures and holds more dirt, increasing the service life before a cleaning is required (up to 100,000 miles). The filter is also isolated from high engine temperature by a heat shield designed to lower the temperature of the air entering the engine, which increases horsepower.

The filter attaches to a rotationally molded tube made from nonmetallic interlaced high density polyethylene (HDPE). This allows for precision shaping of the tube to reduce turbulence and accelerate airflow into the engine. This is why some K&N tubes have unique shapes or indentations that are specifically engineered for each engine configuration. Finally, the tube is connected to the engine with adapters made from high strength materials such as silicon and reinforced nylon and ensures long life. Put all this together and you have the best high-flow intake system available today.

Street Legal
Many K&N intake systems are street legal in all 50 states and include a California Air Resource Board (CARB) Executive Order (EO) number that ensures the kit has been tested to comply with emissions standards. EO numbers apply to the kit as well as the year, make and model it is being installed on. Systems with no EO number are street legal in most states but may not be used on emissions controlled vehicles in the state of California or other states adopting California emission standards. Consult K&N’s website to search by part to see which cold air intakes are CARB exempt for which vehicles.

Key Features:

  • Guaranteed to provide increased horsepower and acceleration (15.47 hp @ 3,829 rpm measured by manufacturer).
  • Engineered to specific vehicle design. See vehicle search above for compatibility.
  • Easy to install, usually in 90 minutes or less and lasts up to 100,000 miles before service is required, depending on driving conditions.
  • CARB exempt and street legal in all 50 US States.
  • Air filter is washable and reusable for extreme durability, but can also be easily replaced if necessary.
  • Works with original manufacturer computer systems.
  • Replaces OEM filter and air box, and is designed to use factory holes and mounting points whenever possible.
  • Million mile limited warranty.

What’s in the Box
1-K&N 57-2556 Second Generation Fuel Injection Performance Kit (includes air intake tube, washable air filter, heat shields, hoses, hose clamps, hardware and detailed instructions necessary for installation).

Limited Warranty
K&N O/E replacement air filters and air intake systems purchased from authorized dealers are backed by a million mile limited warranty from the manufacturer when used primarily on paved roads and on vehicles for which they were designed. If one of these products ever fails to provide complete satisfaction, K&N will replace it at their discretion.

About K&N Engineering
K&N Engineering, of Riverside, California, is the inventor and leading innovator of reusable cotton gauze filter technology for automotive applications. From humble beginnings as a family run business over 35 years ago, K&N Engineering, now a truly global company with offices in the UK and the Netherlands, continues to exist as a family owned business with an enthusiast mindset and a direct connection with motor sports that carries over throughout all levels of management and manufacturing.

* Note: Some FIPK’s will not fit on vehicles with lift kits. Diesel pickup truck performance intakes for Power Stroke, Duramax and Cummins Engines are also available.

Product Features

  • Estimated horsepower gain of 15.46 HP at 3829 RPM
  • 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. Air is directed through an aerodynamically engineered intake tube into the engine’s throttle body for a guaranteed power gain.Air filter large end diameter-7.5 in (191 mm)
  • Easy to install, usually in 90 minutes or less. Clamp material- stainless steel

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