SKU: 18688279379

K&N Air Filter (33-2865)

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

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Description

K&N Air Filter (33-2865)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: 18688279379

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4.2 ★★★★★
Based on 25 reviews
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anon
Grantham, US
★★★★★ 4
Good pillow, not the best overall but it's good value for what you pay.
Size: 20 in x 54 in, Style: 1 Pack
Can be slightly uncomfortable at first, but it goes away quickly, very soft and doesn't hold shape very well, but pillowcases fit well on it, it's pretty quality, and it's durable. There's not much more you can ask for in a pillow.
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Reviewed in the United States on March 24, 2026
L
Verified Purchase
Lynn N
New York, US
★★★★★ 5
Durable and comfortable
Size: 18 x 18 inches, Style: 4 Pack
These pair perfectly with standard 18x18 pillow covers. Fluffy and durable great addition to your decor with the ease of inserting into any pillow cover. Very cost effective and keep their shape!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
M
Verified Purchase
Ms Desiree
Charlottesville, US
★★★★★ 5
Love being able to change with the seasons!
Size: 20 x 20 inches, Style: 4 Pack
I’ve been using the Amazon Basics Square Hypoallergenic Pillow Inserts with my seasonal pillow covers, and I absolutely love them. I like to switch out my covers each month or holiday, and these inserts make it so easy to keep my living room looking fresh and festive year-round. They hold their shape really well and give my pillows a full, plush look without feeling too stiff. I also appreciate that they’re hypoallergenic, which is a big plus for my home. Overall, these inserts are a great staple to have if you enjoy decorating with interchangeable covers. They’re comfortable, reliable, and perfect for keeping up with seasonal décor changes. Highly recommend!
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Reviewed in the United States on April 8, 2026
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Verified Purchase
norma
Dallas, US
★★★★★ 3
If you like your pillows plump, these won't do it.
Size: 20 x 20 inches, Style: 4 Pack
Disappointed in this item. they do not have enough filling in them and what is there flattens out very quickly. Will not purchase this brand again.
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Reviewed in the United States on April 27, 2026
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Verified Purchase
Melissa
Pawtucket, US
★★★★★ 5
Perfect inserts for a great price
Size: 20 x 20 inches, Style: 4 Pack, Size: 20 x 20 inches, Style: 4 Pack
Great inserts! (The cat’s judgement is of me, not the inserts)
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Reviewed in the United States on May 16, 2026

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