SKU: 83452412239

K&N Air Filter (33-2451)

Sale price$45.35 Regular price$50.39
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

K&N Air Filter (33-2451)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: 83452412239

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4.3 ★★★★★
Based on 22 reviews
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Verified Purchase
Cydpea23
Carnegie, US
★★★★★ 1
Super cute but came damaged & really annoying to walk in
Size: 8, Color: Black Leather, Size: 8, Color: Black Leather
Super cute but mine came damaged and the straps don’t stay up great… I love Steve Madden shoes, and own a few pairs already, so I had high hopes for these heels. I ordered these for a wedding coming up and I hadn’t opened the package right away as I was out of town, when I got back I was so excited to try them on only to find that they came already scuffed on the toes and heels!! It looked like they had been worn multiple times already, so that was upsetting. In terms of fit, I ordered a size 8, and it fit true to size as far at the sole goes, as for the strap that goes from in between your toes and around your heel, it falls off after taking 3 steps and is honestly really annoying! The strap that goes across the top of your foot was also wayyy loose on my feet and didn’t help the other strap stay in place much making it super difficult to walk in them, every step felt like they were about to fly off my feet! Unfortunately, I will be returning them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2025
D
Verified Purchase
Dawn Goodreaux
West Palm Beach, US
★★★★★ 5
Comfortable and cute
Size: 9, Color: Coral Leather, Size: 9, Color: Coral Leather
Loved!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2025
M
Verified Purchase
Mrs.Picky
Los Angeles, US
★★★★★ 2
Blue kitten heels
Size: 9.5, Color: Blue Leather
These are very pretty shoes with a comfortable heel height. The first time I wore them, they started slipping in the back. The strap that goes around the heel is not adjustable and they ended up flopping as I walked. I ordered my normal size and they fit perfectly so I couldn’t go down a size. Oh well…. Too late to return them.
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Reviewed in the United States on June 7, 2025
M
Verified Purchase
Marcie Ragano
Cuba, US
★★★★★ 5
Love these shoes
Size: 5.5, Color: White Leather
These Steve Madden shoes are so comfortable. I can wear them all day. I also have them in.
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Reviewed in the United States on June 17, 2025
S
Verified Purchase
Shelley
Los Angeles, US
★★★★★ 5
A very comfortable shoe
Size: 7, Color: Brown Leather
I bought this in a size 7, and it fits beautifully. I normally wear a size 37-38 (European) or a size 8 (US) shoe for walking or jogging. The 3" heels on these shoes are well balanced, making it very comfortable to walk in. The color is a rich dark brown which was just what I wanted. In summary, they fit me good and I'm very glad I bought them.
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Reviewed in the United States on April 11, 2026

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