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Product Details

K&N Air Intake Systems

57 Series Generation II Air Intake Kit by K&N®. This kit improves airflow into your engine. It includes a K&N air filter and a custom designed air intake tube. The K&N filter increases the airflow and the intake tube smoothes that airflow into the engine. The result is more horsepower and torque, and better acceleration you can feel.

K&N - F.A.Q.K&N - WarrantyK&N - About


  • 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

The K&N 57 Series Generation II Air Intake Kit improves intake airflow from the air filter all the way to the throttle body. The system starts with the world famous K&N high flow air filter. K&N uses the largest conical shaped air filter that will fit in the engine compartment. The large increase in filter area over the stock airbox filter results in a huge increase in airflow and a greater capacity to capture and hold dirt.

The filter is attached to a precision molded intake tube that connects the filter to the throttle body. The tube is precisely designed to reduce turbulence and accelerate airflow into the engine. The rotationally molded intake tube is made from interlaced high density Polyethylene, reducing intake air temperature from similar metal tubes. Intake air temperature is further reduced by a heat shield that isolates the filter from the engine compartment. The reduction in air intake temperatures results in a cooler, denser air intake charge and even more horsepower.

K&N uses a dynamometer to design its air intake kits to make the most horsepower possible. But their power figures aren't based on just one vehicle, but rather an average of runs by a number of vehicles. This means repeatable numbers and horsepower claims you can count on.

Every 57 Series Generation II Air Intake Kit comes complete with everything necessary for installation, including comprehensive installation instructions. All adapters are manufactured from high quality materials such as steel, aluminum, silicon or reinforced nylon, to ensure long life. The K&N filter can go up to 100,000 miles before cleaning is required. And the K&N air filter is guaranteed for one million miles.

K&N® is the inventor and leading innovator of reusable cotton gauze filter technology for automotive applications. The first K&N filter was conceived for racing over 40 years ago and a performance enthusiast mindset continues today throughout all levels of the company. K&N is the sales and brand leader for performance filters, including an extensive line of factory replacement filters and performance air intake kits. The company actively promotes the environmental, economical and performance advantages of long-life reusable cotton gauze filters.

Warranty Information

K&N O/E Replacement Air Filters and Air Intake Systems purchased from Authorized Dealers are backed by a Million Mile Limited Warranty 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.

K&N Aftermarket Air Filters should be cleaned every 50,000 miles for normal highway use, more often in dusty conditions. Cleaning should be done with K&N cleaner and air filter oil (or comparable air filter cleaner and oil). Use of compressed air, or chemicals not specifically designed to clean and re-oil cotton air filters (i.e. gasoline, transmission fluid, motor oil, lightweight oil, or diesel fuel) will void the warranty. Any damaged, abused or modified K&N Air Filters will not be warranted.

Any K&N product returned to K&N will need a Return Goods Authorization number and must be sent at customers' expense along with proof of purchase.

Any defective K&N Air Filter properly returned to K&N will be replaced. K&N reserves the right to determine whether the terms of the warranty, set out above, have been properly complied with. In the event that the terms are not complied with, K&N shall be under no obligation to honor this warranty. K&N will not be responsible for any indirect, consequential, special, contingent, or other damages.

K&N wants to make sure that when you buy a K&N Lifetime Air Filter or Air Intake System, you can be confident your vehicle's warranty will not be impacted. K&N also want you to feel confident that even if you experience difficulties with a dealership repair department, K&N will step-in and resolve the issue, so you won't have to. Therefore, K&N makes the following Pledge: K&N pledges to their customers that they will not be taken advantage of and charged for a repair due to a manufacturer warranty denial blamed on the presence of a K&N product.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

Product Reviews


Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.

K&N® - 57 Series Generation II Air Intake Kit
K&N® - 57 Series Generation II Air Intake Kit
Average Rating: 4.6 of 5
5 of 5
Great Filter
Looks, fits, and sounds great.
JPosted by (Huntington Beach, CA) /
2006 Toyota Tundra
Was this review helpful for you? Yes
5 of 5
Good product.
KPosted by (Provost, AB) /
2013 Dodge Ram
Was this review helpful for you? Yes
5 of 5
Matched Price
K&N Products are always made with quality materials, good design and engineered to fit your application, this product met all those standards. Te unit increased what I call slight throttle acceleration as generally increased performance. Since it is unsilenced it has a roaring sound over 3000 RPM. If I have a complaint it is that the rubber grommet used to attach the intake tube to the throttle body is too tight and it takes serious effort to get the intake tube seated inside it.
BPosted by (Huntington Beach, CA) /
2005 Lexus IS
Was this review helpful for you? Yes
4.8 of 5
2004 GMC Yukon
Looks great! Sounds great only problem sleeve the couples throttle body to intake tube should have been better quality but besides that 10/10.
MPosted by (Las Vegas, NV) /
2004 GMC Yukon
Was this review helpful for you? Yes
5 of 5
Well Worth The Money!
I was a little iffy about buying this product because of the plastic pipping, but it honestly the way to go, immediately felt the difference in throttle response and ponies, and oh boy the deep growl tone i get is a big upgrade. Very easy to install and it was shipped quickly!
PPosted by (Merced, CA) /
2005 Ford Focus
Was this review helpful for you? Yes
5 of 5
K&N Drycharger
I bought this as a safety precaution for my cold air intake. It arrived on-time, has great quality and fits perfectly around my K&N filter. Material is fin and tough and should be a great barrier for the filter over the years.
JPosted by (Richardson, TX) /
Was this review helpful for you? Yes
4.3 of 5
Top K&N for Your Truck
More power and better air flow.
LPosted by (Fresno, CA) /
2001 Toyota Tacoma
Was this review helpful for you? Yes
4 of 5
K&N® 57-2541 - 57 Series FIPK Air Intake System
So much improvement from my 2000 ford XLT F150 5.4 I got fast everything, but know my gas gauge goes fast to empty lol but now I'm looking at super chip.
JPosted by (Gibsonville, NC) /
2000 Ford F-150
Was this review helpful for you? Yes
4 of 5
Sounds Nice Under The Hood!
Installation was a little rough!
KPosted by (Wheaton, IL) /
1993 Pontiac Firebird
Was this review helpful for you? Yes
5 of 5
Great Product
Installed faster than the instructions predicted. Got the old stock part out and this new one installed in less than an hour. Easy, anybody can do it.
JPosted by (San Lorenzo, CA) /
2014 Ford F-150
Was this review helpful for you? Yes
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