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K&N 33-2181 5.0 out of 5 stars 11 Customer Reviews
Replacement Filters > Replacement Air Filter

List Price: $73.40
Your Price: $49.99

You Save 31.9%


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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 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 Shape:Panel
Filter Material:Cotton Gauze
Filter Re-Oiling Amount:1.21 oz (36 ml)
Height:1.25 in (32 mm)
Outside Length:13.688 in (348 mm)
Outside Width:5.188 in (132 mm)
Package Contents:1 Air Filter
Package Quantity:1
Part Number:33-2181
Product Box Height:17.19 in (437 mm)
Product Box Length:8.31 in (211 mm)
Product Box Width:1.75 in (44 mm)
Product Style:Panel Air Filter
Weight:0.86 lb (0.39 kg)

Product Reviews

 Always love K&N filters. Always fit, always improve, whats not to like?
Jonny, Houston, Texas
 Good product and at very fair price.
Rafi, New York
 Liked the product.
Randolph Caldwell, Dallas, Texas
 As usual, excellent product. Immediate difference noted in performance. Will always be a K&N customer!
Mark Oltman, Colorado
 Great. More acceleration. Love them.
George Scannelli, West Caldwell, New Jersey
 Wow. Improved acceleration.
George Scannelli , New Jersey
 Since installing the air filters I have noticed better gas mileage and a slight increase in power. They were easy to install and come with stickers stating they are lifetime filters so no one replaces them by mistake!
Mark Maheux Sr., Connecticut