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Product Details

K&N Air Intake Systems

57i Series Induction Kit by K&N®.This induction kit is an easy and inexpensive way to increase airflow into your engine. It replaces your restrictive factory airbox with a free flowing K&N air filter. Increasing airflow will make more horsepower and torque, resulting in better acceleration.


  • Guaranteed to increase horsepower
  • Specifically designed for each application
  • Works with OEM computer system
  • Economical way to improve performance
  • Includes the world’s best air filter, the K&N filter
  • Easy to install
  • Up to 100,000 miles between servicing
  • Million Mile limited warranty

Your OEM air induction system is a compromise between induction noise considerations, underhood space limitations and engine airflow requirements. Replacing that system is an easy way to improve engine performance. Increasing the airflow and air volume into your engine will result in more horsepower and torque and possibly more miles per gallon.

The heart of the 57i Series Induction Kit is the world famous K&N air filter. The kit includes the largest air filter possible for the application, much larger than the size restricted filter that came in the factory airbox. The K&N air filter's increased surface area provides less restriction and more airflow, while capturing and holding more dirt. Depending upon the application, the filter is either directly attached to the throttle body or indirectly attached with a flexible tube.

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 57i Series Induction 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.

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® - 57i Series Induction Kit
K&N® - 57i Series Induction Kit
Average Rating: 4.5 of 5
4.5 of 5
Great Filter Kit For A Classic Saab
The filter and house are both quality items. Installation on my 1988 Saab 900 was fairly simple after I figured out the instructions, which included a diagram that was a bit confusing.
KPosted by (Dothan, AL) /
1988 Saab 900
Was this review helpful for you? Yes
5 of 5
I bought one of these for my 2000 Volvo S40, and it surely made a nice improvement. It's hard to notice if I gained any horsepower but one thing is for sure, it certainly improved sound. I can now hear my turbo whistle nice and loud. Pretty sweet. Buy one.
APosted by (Fairfield, VT) /
2000 Volvo S40
Was this review helpful for you? YesThis review was helpful for 1 user!
4.5 of 5
Unplugged Raw Power
I have these huge filters on all three of my rigs, and they really make acceleration from zero a blast. I just installed this system on the Miata. It included an air duct and a bolt on rubber manifold to pick up air from the front. This was designed for the English version of the Miata, and the hose will not fit our Miata, so I had to improvise to make it work. You could just run the car without the tube, but it makes more horsepower with cold air. Total installation time was several hours.
CPosted by (Willits, CA) /
1997 Mazda Miata
Was this review helpful for you? YesThis review was helpful for 2 users!
4 of 5
Great Product, But...
With this kit you revive the filter, bracket, and new a mount, which does not work at all with the e34. The filter mount right on the end of the intake elbow, which keeps the filter far away from the grille. The solution: buy this + a 3.5'' heat shield (found on this website + go to plumbing store by a 6" long 3.5" diameter pipe + a rubber coupling (same diameter). The pipe will cost about 10-15$. This will allow the filter to be closer to the grille, keep the hot air away from the filter, and it looks great too.
JPosted by (Cambridge, ON) /
1995 BMW 5-Series
Was this review helpful for you? YesThis review was helpful for 3 users!
3.5 of 5
I have a 2000 M Roadster. The part filter sleeve did not fit very well and I had to make a part to hook the filter to the mounting bracket.
KPosted by (Casper, WY) /
2000 BMW Z3
Was this review helpful for you? YesThis review was helpful for 3 users!
4.5 of 5
This intake made my car just that much faster, and the noise it makes definitely turns heads. Can't wait to purchase more from you guys.
RPosted by (Staten Island, NY) /
2002 Hyundai Accent
Was this review helpful for you? YesThis review was helpful for 8 users!
4.8 of 5
Great Product
I was very satisfied with the product and how helpful CARiD was. It took a little over a week to get here but detailed instructions made installation very easy. I have noticed a small increase in power and I get better gas mileage, it also makes my car sound better.
HPosted by (Clemmons, NC) /
2000 Volkswagen Passat
Was this review helpful for you? YesThis review was helpful for 4 users!
4.3 of 5
K&N Open Air Filter for 2000 SAAB 9-3
Works great. Installation was simple if you have minor car experience. Price was a little high.
CPosted by (Cambridge, MA) /
2000 Saab 9-3
Was this review helpful for you? YesThis review was helpful for 2 users!
4.8 of 5
Audi A6 Filter kit
The kit was received in good condition. The installation took about one hour and was easy to fitted in place. Great job guys! Andre T.
APosted by (St-lazare, QC) /
1998 Audi A6
Was this review helpful for you? YesThis review was helpful for 5 users!
3.8 of 5
My review, Product Name: K&N® - 57i Serie
Bought this product a few weeks back, it was the perfect fit, and my order was delivered in a timely manner. I was evry satisfied with the product and the service. Hands down.
GPosted by (West Park, FL) /
1990 Mazda Miata
Was this review helpful for you? YesThis review was helpful for 5 users!
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