K&N 33-2381

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9 out of 5 stars   14 Customer Reviews
List Price: $82.98
Your Price: USD $52.99

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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 virtually every vehicle 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.

[More Information on K&N Replacement Air Filters]
  • 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
  • Million Mile Limited Warranty®

Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.06 oz (31 ml)
Height1.125 in (29 mm)
Outside Length10.5 in (267 mm)
Outside Width7.188 in (183 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height13.56 in (345 mm)
Product Box Length7.72 in (196 mm)
Product Box Width1.75 in (44 mm)
Product StylePanel Air Filter
Weight1.1 lb (0.5 kg)

Product Reviews

See all reviews!
Review part 33-2381
Monday, October 19, 2015 - Part 33-2381
Just installed it on my wife's 2015 Avalon Limited Hybrid car only has 3,000 miles on it. However, it made about a 2 to 3 mpg difference in her 2008 Camry Hybrid XLE so I figured it would hopefully do the same for the Avalon.This is the 5th car we have equipped with the K & N air filter, we have also ordered one for our 2005 Prius and one for my new 2016 Mustang GT Premium convertible. Forget about the gas savings, normally the engine air filter gets replaced every 2nd or 3rd oil change so after the 3rd air filter replacement, the K & N air filter is FREE for the rest of the time you own the vehicle. I normally keep all my vehicles over 200,000 or until they start flunking smog so you can see the definite financial advantage of the K & N that most people do NOT think about.

William Davis
Roseville, California
Tuesday, October 13, 2015 - Part 33-2381
Simply the best. I don't have many performance upgrade options at my disposal for my 2013 Lexus ES300h. K&N intakes and filters have always been a staple of my previous rides. This air filter boosted my mpg's by 2 after only the first tank of gas. Just wish they would have sent me a sticker with black print for a white car instead of the white print that I got.

Jon Gleason
Boise, ID
Friday, September 25, 2015 - Part 33-2381
Very pleased with the product and was very glad they had one for my 2015 Toyota Rav4 XLE.

K Mcel
Calgary, Alberta
Tuesday, September 22, 2015 - Part 33-2381
This filter is for a Hybrid. I thought I would save money by cleaning rather than replacing. I was not expecting any improvement of my fuel mileage. Boy was I wrong, I will now use your filters on all of our vehicles.

Jon Mclean
Huntsville, Texas
Friday, June 26, 2015 - Part 33-2381
I am in my 3rd RAV-4 in 17 years. I have used K&N filters in all. In my new 2015 XLE AWD, I installed the K&N filter about a month ago. I have since observed a quicker response to throttle input. While now indulging in the heightened responsiveness, I am still experiencing my previous average in city mileage of about 20 - 22 mpg. This is in line with the improvement I was anticipating.

John L DeWitt
Mobile, Alabama
Tuesday, May 26, 2015 - Part 33-2381
Easy to install and the perfect fit. My SUV runs smoother and has more guts. I have used your filters in my other vehicles with equal success.

Wayne Rosenwald
Homosassa, Florida
Friday, May 15, 2015 - Part 33-2381
K&N filters are well worth the purchase price. Engines run at peak performance.

Dave Corn
Issaquah, Washington