K&N 33-2521

Replacement Filters > Replacement Air Filter
List Price: $71.17
Your Price: USD $45.99

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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 Amount1.09 oz (32 ml)
Height0.875 in (22 mm)
Inner WireNo
Outside Length10.625 in (270 mm)
Outside Width7.375 in (187 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
Top StyleOpen
Weight1.3 lb (0.6 kg)

Customer Feedback

Be the first to review part 33-2521
I use K&N filters in all my vehicles. I had recently purchased a 2015 Ram 3500. Bought the K&N filter for that and noticed an immediate increase in fuel mileage and performance due to better airflow through the K&N filter. & I have K&N on both of my Harley's and my wife's Honda Prelude

Spring Hill, Florida
I installed the VF2001 cabin air filter in my 2012 Honda Accord sedan and was very pleased by the ease of installation and noticed an immediate difference in the air flow and freshness of the cabin air. I am familiar with your products, as I have used them in other vehicles I have owned.

Louis W. Sport Jr.
I have been using K&N air filters for the last 9 years and they never let me down. Just bought a new 2015 Honda Accord and it brought the mpg up 3. As always a good buy and works like it says it does, I am very satisfied.

Mike B
Knoxville, Tennessee