Replacement Air Filter
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K&N Replacement Air Filter

Part No. 33-2231 Warranty Details  

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Check Vehicle Fit

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 the majority of vehicles 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.

Product Features:
  • This is the last air filter your vehicle will ever need!
  • 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┬«
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Height:1.063 in
Material:Cotton Gauze
Outside Length:9.375 in
Outside Width:6.875 in
Shape:Panel

REVIEW SNAPSHOT®

by PowerReviews
K&NReplacement Air Filter
 
4.6

(based on 5 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to use (5)
  • High-performance (3)

Cons

No Cons

Best Uses

No Best Uses
    • Was this a gift?:
    • No (3)

Reviewed by 5 customers

Displaying reviews 1-5

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(1 of 2 customers found this review helpful)

 
5.0

Always the Best

By 

from Virginia

About Me Casual Driver, Mechanic

See all my reviews

Verified Buyer
Helpful Reviewer

Pros

  • Durable
  • Easy To Use
  • High-Performance
  • Lightweight
  • Versatile

Cons

    Best Uses

    • Large Cars
    • Small Cars
    • Trucks

    Comments about K&N Replacement Air Filter:

    5 Minute install, and clean and spary is all you do from time to time depending on your driving habits.

    • Was this a gift?:
    • No

    Comment on this reviewHelp Icon

     
    5.0

    noticeable power increase and airflow

    By 

    from Murfreesboro, TN

    Verified Buyer

    Pros

    • Easy To Use
    • High-Performance

    Cons

      Best Uses

        Comments about K&N Replacement Air Filter:

        not available at all stores had to drive 15 miles to another town to purchase

        • Car & Truck:
        • Auto Enthusiast
        • Was this a gift?:
        • No

        Comment on this reviewHelp Icon

         
        4.0

        Air filter easy to install

        By 

        from rochester, ny

        See all my reviews

        Verified Buyer

        Pros

        • Easy To Use

        Cons

          Best Uses

            Comments about K&N Replacement Air Filter:

            [...] good price, easy to install

            • Car & Truck:
            • Casual Driver
            • Was this a gift?:
            • No

            Comment on this reviewHelp Icon

             
            4.0

            K&N Air Filter for BMW 325CI Convertible

            By 

            from Fairfax VA

            See all my reviews

            Verified Buyer
            3 or more reviews submitted

            Pros

            • Clear instructions
            • Easy To Use

            Cons

            • No instructions on cleani

            Best Uses

            • Any cartruck

            Comments about K&N Replacement Air Filter:

            Have to remove the air filter box in order to install an extra seal - took extra 10 mins

            • Car & Truck:
            • Auto Enthusiast

            Comment on this reviewHelp Icon

            (1 of 1 customers found this review helpful)

             
            5.0

            Better Performance and Gas Mileage

            By 

            from San Antonio, Texas

            Pros

            • Durable
            • Easy To Use
            • Gas Mileage
            • High-Performance
            • Performance

            Cons

              Best Uses

                Comments about K&N Replacement Air Filter:

                3rd time I have switched from OEM to K&N; never regreted it!

                Comment on this reviewHelp Icon

                Displaying reviews 1-5

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                Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.