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K&N 33-2031-2 4.7 out of 5 stars 14 Customer Reviews
Replacement Filters > Replacement Air Filter

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33-2031-2
 
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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:1.06 oz (31 ml)
Height:1.125 in (29 mm)
Outside Length:11 in (279 mm)
Outside Width:6.563 in (167 mm)
Package Contents:1 Air Filter
Package Quantity:1
Part Number:33-2031-2
Product Box Height:13.56 in (345 mm)
Product Box Length:7.72 in (196 mm)
Product Box Width:1.75 in (44 mm)
Product Style:Panel Air Filter
Weight:1.1 lb (0.5 kg)


Product Reviews    See all reviews!  Review part 33-2031-2

 Like it, fit in fine. 2000 Nissan Xterra.
Liz Smith, Maryland
 Increased acceleration speed. 0-60 in 8.8 seconds. Will check against stock specs.
Darren, Brentwood, California
 Filter was for my Infiniti G35 coupe and was installed with the help of a DIY video.
Bob Lanson, Tarpon Springs, Florida
 Excellent product!!! I can really feel the difference in performance between the K&N filter and the stock filter.
Don Mashburn, California
 This product surpassed my expectations. I highly recommended for a'll vehicle's
Daniel Williams, Lakeland Florida
 Works great like my previous K&N products.
Waybourn Anderson, Houston Texas
 Had K&N air filters in previously owned cars. Lived up to my expectations.
Alex Karros, Illinois