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K&N 33-2231 Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5 4.4 out of 5 stars 7 Customer Reviews
Replacement Filters > Replacement Air Filter

List Price: $74.06
Your Price: USD $50.99

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33-2231
 
Not in stock.
  Will ship as soon as it becomes available.

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 oz (30 ml)
Height1.063 in (27 mm)
Outside Length9.375 in (238 mm)
Outside Width6.875 in (175 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height9.69 in (246 mm)
Product Box Length7.72 in (196 mm)
Product Box Width1.75 in (44 mm)
Product StylePanel Air Filter
Weight0.8 lb (0.3 kg)


Product Reviews


  Great product. Always makes. Difference. Shipping was BS FedEx sucks coming across the border. USPS is WAY better.
Eric Manitoba
  Installed perfectly and appears to be working well.
Ted Miles Petaluma, CA
  Great product. It does improve performance on the car like it says it does. Installed on 2000 bmw 323i. Filter must be universal. It came with a gasket to line the upper part of the filter housing. Have to use that liner in addition to the filter to fit and work properly. K&N should not have used this liner and should have made made a direct fit. Hence, the 4 star. Saw the you tube on how to clean the filter. While drying time is needed, the car will be down. In order to keep the car running, I'll have to install the old type air filter. However I cannot install the old type air filter with that gasket in the way.
Al Detroit
  Love it! This is clearly the best air filter money can buy for your car.
Jason A. Paris, Kentucky
  The air filter works well in my son's BMW 330ix.
Mark Putnam Orange, Virginia
  The installation and directions for the product was clear and easy to do. Installed the filter and went for a drive. The car felt smoother in throttle response and love the simple mod for improved performance.
Tomi Irvine, California
  I have several filters for my vehicles and they are great as far as I can see.
William H Cherry Murrieta, California