K&N® - 33 Series Unique Air Filter

25 reviews|Item # sp224523|Similar Products
$49.99 - $149.99
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Product Details

33 Series Unique Air Filter by K&N®. K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. K&N makes over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. K&N stock replacement air filters for street vehicles are covered by K&N famous K&N Million Mile Limited Warranty and will be the last air filter your vehicle will ever need.

Features

  • Improves engine airflow
  • Increases horsepower and acceleration
  • Superior filtration without reduced airflow
  • Reduces maintenance costs
  • Washable and reusable
  • Get up to 50,000 miles between cleanings under normal driving conditions
  • Emissions legal in all States
  • Backed by K&N's Million Mile/10 Year Limited Warranty

Most air filters on the market are a compromise. Many high-performance filters deliver better airflow, but sacrifice filtering ability and engine protection in the process. OEM filters, which are usually made of paper, filter adequately but at the expense of airflow. And airflow decreases as these air filters become dirty. Not so the K&N air filter. K&N air filters increase airflow without decreasing filtration ability, and the increased airflow remains consistent throughout the filter's service interval. The secret is in the K&N filter's construction.

K&N's initial goal was to develop a filter that would deliver increased airflow during dirty, dusty off-road racing conditions. Increased airflow improves the efficiency of the combustion process, increasing horsepower and torque. But just increasing airflow without ensuring adequate filtration under those conditions would result in a ruined engine. K&N's solution was a filter design consisting of 4 to 6 layers of cotton gauze sandwiched between two aluminum wire screens. The cotton is then treated with a specially formulated grade of oil that causes tackiness throughout the cotton’s microscopic strands. The resulting K&N filter not only delivers increased airflow while trapping dirt particles that could harm your engine, that level of airflow is maintained even as the filter gets dirty. The layers of oiled cotton fibers in the K&N filter trap dirt particles that are smaller than the holes in the filter media. The thickness of the layers also allows the K&N filter to trap dirt and dust on many levels, trapping more dirt without decreasing airflow. Contrast this with a paper filter that only traps dirt on its surface; as the surface area becomes clogged, the airflow rate goes down.

Each K&N air filter is custom designed to fit into your existing factory air box. The K&N filter is economical because it's the last air filter you'll have to buy for your car. It can be washed and reused many times, and since you can usually drive up to 50,000 miles between servicing, you won't have to clean it very often. And every K&N filter is backed by K&N's Million Mile Limited Warranty. By the way, check the CARiD reviews and read what the customers think of K&N products.

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 50 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.

Reviews

(25)
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K&N® - 33 Series Unique Air Filter
/5
1-10 of 25 Reviews
I like it so far, if anything I'll be back for another review.
Posted by Jordan (Somerset, NJ) / December 11, 20202009 Honda Accord
I wouldn't say significant performance improvement, but definitely noticeable, especially in 30-60 acceleration. It's nothing special going straight from 0 to 30, or 0 to 45, but it does do a good pull with the 30-60 and onward. I can only imagine that this is because of the rush of air that the intake starts to get at that speed. So it's worth the money for that alone. As for actual filtration, I'd say it's about on par with the stock filter, maybe a little worse. I don't live in a dusty area, but if you do, it's something you should consider.
Posted by David (Middletown, OH) / April 24, 20202007 Honda Accord
5 of 5
Car Can Breath
Looks great, although once installed it can’t be seen. Extremely easy to install, basically fits right in to stock location without any alteration needed. Huge difference in performance noted immediately. The car even sounds better, lower, more powerful sound. With the extra power I’m sure my fuel mileage will improve as well.
Posted by Kimberlea (Thunder Bay, AB) / February 17, 20192008 Lexus IS
5 of 5
K&N Air Filters
I have used these filters for years and the quality is always excellent.
Posted by Jim (Lansdale, PA) / December 03, 20162000 Porsche 911 Series
5 of 5
2015 Volvo
When I place the order, I entered my vehicle as a 2015 Volvo, but when I received the confirmation, it came back saying the filter was for a 2012 Volvo. I immediately tried to cancel, but due to the fact it was a weekend the order was never cancelled by the manufacturer. It looked the same shape as the factory filter, so I decided to try it before returning. It fits perfectly. Very pleased the the purchase.
Posted by Wendy (Tucson, AZ) / November 11, 20152012 Volvo XC60
5 of 5
Real Power
Best on the market, would buy for all my Jeeps.
Posted by Chezley (Road Town, AA) / July 28, 20152006 Toyota RAV4
5 of 5
Air Filter
Easy to install and you can feel the difference.
Posted by Angel (El Paso, TX) / February 09, 20152012 BMW 1-Series
5 of 5
K&N Filter
Easy to install. Great product.
Posted by Eduardo (Miami, FL) / February 06, 20152006 BMW 5-Series
5 of 5
Can Feel the Difference
Right away I could feel the better pull of my car. It runs so much smoother.
Posted by Austin (Spring Lake, MI) / August 02, 20142007 Pontiac G5
5 of 5
K&N 33 Series Air Filter for RAV4
Excellent product. Easy installation. Better performance and better air flow. Very content with the K&N air filter.
Posted by Markus (Chandler, AZ) / November 27, 20132012 Toyota RAV4
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