SKU: 51055533553

K&N Air Filter (33-2440)

Sale price$60.47 Regular price$67.19
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 6 - Sep 11

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Description

K&N Air Filter (33-2440)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: 51055533553

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4.4 ★★★★★
Based on 20 reviews
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Verified Purchase
Cristian Lamport
Pawtucket, US
★★★★★ 5
Great charging station
Color: Black
I love this charging station. It lives on my desk and it gets used all day every day with every device I can think of charges my phone, my MacBook Pro, my gaming, laptop, headphones, etc and it doesn’t quickly. I’ve had no problems with it whatsoever, and I love the retracting cables, and a little adhesive pad that keeps it in place on the desk. Well done!
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Reviewed in the United States on June 11, 2026
J
Verified Purchase
Jackson
Battle Creek, US
★★★★★ 5
retractable cable is a game changer for desk cable management
Color: Black
The retractable cable on this power strip is the feature I didn't know I needed. Being able to extend exactly as much cord as you need and have the rest neatly contained means zero cable clutter on the desk. The 2.3ft cord is enough for most desk setups and the coil retracts cleanly every time. 100W total output is adequate for a multi-device setup — I run a MacBook Pro (via the 65W USB-C port), an iPad, a phone, and a small lamp off it simultaneously without issues. Three AC outlets cover anything that doesn't charge via USB. The form factor is compact enough that it sits on the desk surface without being in the way. Build quality feels premium, not flimsy. The InstaCord retraction mechanism is smooth and doesn't feel like it'll snap after a few months. One thing to note: this doesn't have a battery, it's just a power strip with a retractable cord. If you need a battery backup, look elsewhere. As a pure power strip with great cable management, it's excellent.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
J
Verified Purchase
Jonathan M. Lisee
Lexington, US
★★★★★ 5
Awesome desktop accessory!
Color: Black
Perfect desktop accessory for maximum functionality. 3 outlets on the back and 2 USB C cables that come out the sides. Holding to the side via a magnet. Charges my devices very quickly. Absolute workhorse for its weight and portability.
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Reviewed in the United States on April 3, 2026
A
Verified Purchase
Arturo R. Agramonte
Lowell, US
★★★★★ 5
Minimalist's Dream
Color: Black, Color: Black
The ultimate desk decluttering tool! I am extremely happy with this 7-in-1 station. The best part is the built-in retractable cables; I no longer have to manage a mess of cords on my desk. It has a very small footprint but packs enough punch to power my laptop and several other devices at once. It’s a high-quality, compact solution that solved all my cable management issues. Five stars!
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Reviewed in the United States on April 18, 2026
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Verified Purchase
Andrew
Fort Morgan, US
★★★★★ 5
Good Charging Station!
Color: Black
I’ve been using the Anker Nano 7-in-1 charging station for a few weeks now and overall I’m happy with it. I wanted something that could replace multiple chargers on my desk, and this does exactly that. Being able to plug in a laptop, phone, and a few other devices at the same time without swapping cords has been really convenient. The USB-C ports provide fast charging, including enough power for a laptop, which was important to me. Everything charges reliably and the unit doesn’t get excessively warm during normal use. The build quality feels solid, which is what I’ve come to expect from Anker products. It also doesn’t take up much space, so it works well on a desk or nightstand. One thing to be aware of is that when multiple devices are plugged in, charging speeds can vary depending on what’s connected. It hasn’t been a problem for me, but it’s worth noting. Also, it’s a bit heavier than a basic power strip, so it’s better suited for stationary use rather than travel. Overall, this is a well-made charging station that helps keep things organized and cuts down on cable clutter. If you have several devices to charge and want a cleaner setup, this is a good option. Pros: Charges multiple devices at once Fast USB-C charging, including laptops Solid build quality Helps reduce cable clutter Cons: Charging speed varies with multiple devices Slightly bulky for travel TL;DR: A reliable and convenient charging station that does what it’s supposed to do.
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Reviewed in the United States on January 28, 2026

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