SKU: 1306951148

K&N Air Filter (33-2339)

Sale price$49.67 Regular price$55.19
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

K&N Air Filter (33-2339)K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make 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

K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make 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. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.

Features:

  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle 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 porducts.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1306951148

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4.6 ★★★★★
Based on 989 reviews
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Verified Purchase
Amanda_Cullen
Dallas, US
★★★★★ 4
Dogs love them, not long lasting
Size: Large
Our dogs ignored the toy for the first day or two, then immediately became obsessed, working on them for hours at a time. They did come with big cracks/splits in them. The first one it wasn’t a big deal, but the dogs pulled large slivers and chunks off the second within minutes of using it. Also, gigantic mess around the house, like letting them play with a stick. I plan to continue to buy since the dogs love them but I do think they are a bit expensive given the quality variations.
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Reviewed in the United States on December 15, 2024
R
Verified Purchase
robin biles
Waukegan, US
★★★★★ 5
Durable, good value, clean, natural
Size: Small, Size: Small
I bought this coffee wood toy with the coconut rope for my heavy chewer (Jack Russell Terrier) a couple of years ago. I was pretty skeptical that it would last very long and be a toy that she would enjoy. This is one of her favorite toys, it's lasted for 2+ years, and it's not gross after so much use. This dog shredded everything in sight when she was a puppy, so it was important to find her lots of different hard toys. I bought another coffee wood toy with no rope, and she doesn't care for it as much. We might have to drill a hole and add a coconut rope when this one get's too small. I have not had an issue with the coconut fibers or wood pulp, though I'm sure she's ingesting some. I have had to take away many hard toys that she managed to chew off large bits or I felt like she was eating bits of plastic, but this one has been safe for her. She was already an adult dog when I got her this toy, so I cannot vouch for how it would work for a puppy, but I suspect that it would have been a toy that I would only let her have under supervision when she was a puppy. I like that it is made from natural materials.
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Reviewed in the United States on January 26, 2026
K
Verified Purchase
Kendra
Houston, US
★★★★★ 2
Flimsy rope
Size: Large
This was definitely not sturdy enough for a large dog "up to 80 lbs" as stated. My 7 month old Shepherd puppy shredded the rope part in about 5 minutes. The chew stick is a hit but very small. Flimsy for the cost!
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Reviewed in the United States on September 17, 2025
D
Verified Purchase
DJ
Bozeman, US
★★★★★ 3
Fast Chew
Size: Medium
Didn’t last as long as I expected. My Frenchie chewed through it in record time. I will purchase another one to see if it’s the same as the one I received.
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Reviewed in the United States on September 28, 2025
K
Verified Purchase
Kidzmomma
Birmingham, US
★★★★★ 5
Great for chewers
Size: Large
I have bought these for the dogs (GSD/Husky/Golden) 4 mon-7yrs. All 4 dogs enjoy them and keeps the 2 puppies from chewing things they should not. Definitely worth the money for how long they have lasted as well. Have already ordered more.
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Reviewed in the United States on October 4, 2025

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