SKU: 38947818073

K&N Air Filter (33-2281)

Sale price$49.67 Regular price$55.19
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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

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Description

K&N Air Filter (33-2281)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: 38947818073

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4.2 ★★★★★
Based on 16 reviews
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A
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Alma
Omaha, US
★★★★★ 5
Great tasting Dog Treat for any dog.
Flavor Name: Bone (S), Size: 6 Count (Pack of 1)
I have a very picky Shipoo and she loves these. She devours them all. So happy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
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gail margolis
Pawtucket, US
★★★★★ 5
Fantastic Treat for Puppies
Flavor Name: Bone (S), Size: 6 Count (Pack of 1)
My dogs love them!Great treat for my puppies!
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Reviewed in the United States on April 22, 2026
D
Verified Purchase
Donna Mohlman
Massapequa, US
★★★★★ 5
My dogs love these the size of them are perfect for small dogs
Flavor Name: Bone (S), Size: 6 Count (Pack of 1)
I bought these for my dogs because they really love the chicken jerky and these are not big and I have small dogs so these worked out very well they totally love them and they're hypoallergy so that made it even more better and the price is very good on them totally recommended for small dogs especially
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Reviewed in the United States on December 20, 2025
Y
Verified Purchase
Yana Duke
Cuba, US
★★★★★ 1
CHOKING HAZARD
Flavor Name: Bone (S), Size: 6 Count (Pack of 1)
CHOKING HAZARD: I purchased these bones for my small Yorki.. He ate the first two without incident; however, on the third bone he unfortunately choked. As the bones wear down, they become extremely stringy, and those strands do not appear to be digestible. I had to rush my dog to the emergency room, which cost $700. Three days later, he became even sicker because he was unable to pass the remaining portion of the bone still in his stomach. I then had to take him to his regular veterinarian, where he was admitted overnight and diagnosed with pancreatitis and a severely irritated gastrointestinal tract. This entire ordeal cost me over $1,500 in addition to the initial $700 emergency visit. I am grateful that my dog is now alive and well, but these bones pose a serious choking hazard and do not digest properly. I strongly caution other pet owners, especially those with small dogs.
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Reviewed in the United States on January 14, 2026
A
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A. Wu
Alexandria, US
★★★★★ 5
One of the cleanest, most reliable creatine options out there
Flavor Name: Unflavored, Size: 30 Servings (Pack of 1)
I’ve tried quite a few creatine brands over the years, and the Thorne Creatine – Micronized Creatine Monohydrate Powder is easily one of the highest-quality options I’ve used. What stands out immediately is how clean and simple the formula is—just pure micronized creatine monohydrate with no fillers or additives. Each serving gives you the standard 5g dose, and it’s NSF Certified for Sport, which adds an extra layer of confidence around quality and purity. Mixability is excellent. Because it’s micronized, it dissolves much better than a lot of other creatine powders I’ve tried—no clumping or gritty texture, even in just water. Performance-wise, it does exactly what you want from a creatine: improved strength, better endurance during workouts, and faster recovery between sessions. Creatine monohydrate is also the most well-researched and proven form for performance and muscle gains, which is why I stick with it. Another big plus is that it’s completely unflavored, so it’s easy to mix into anything—protein shakes, pre-workout, or just water—without affecting taste. Overall, this is a no-frills, high-quality creatine that delivers exactly what you expect. If you’re looking for a clean, trusted supplement that just works, this is an easy recommendation.
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Reviewed in the United States on March 23, 2026

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