Replacement Air Filter
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K&N Replacement Air Filter

Part No. 33-2431 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:1.25 in
Material:Cotton Gauze
Outside Length:12.25 in
Outside Width:9.625 in
Shape:Panel

REVIEW SNAPSHOT®

by PowerReviews
K&NReplacement Air Filter
 
5.0

(based on 4 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • High-performance (3)

Cons

No Cons

Best Uses

No Best Uses
    • Was this a gift?:
    • No (4)

Reviewed by 4 customers

Displaying reviews 1-4

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5.0

Blown away

By 

from Gallatin, TN

Comments about K&N Replacement Air Filter:

Couldn't afford the cold air intake so this was the next best thing.

  • Was this a gift?:
  • No

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(2 of 2 customers found this review helpful)

 
5.0

K & N IS AN EXCELLENT PRODUCT!

By 

from TITUSVILLE, FLORIDA

About Me Auto Enthusiast

Verified Buyer

Pros

  • High-Performance

Cons

    Best Uses

      Comments about K&N Replacement Air Filter:

      K&N IS AN EXCELLENT PRODUCT...AND TRULEY MAKES A PERFORMANCE DIFFERENCE IN EVERY AUTO I HAVE PLACED IT IN.

      • Was this a gift?:
      • No

      Comment on this reviewHelp Icon

      (1 of 1 customers found this review helpful)

       
      5.0

      K & N Panel type reusable stock filter

      By 

      from Silver Spring, MD

      About Me Auto Enthusiast

      Verified Buyer

      Pros

      • Durable
      • Easy To Use
      • High-Performance

      Cons

        Best Uses

        • Large Cars
        • Small Cars
        • Trucks

        Comments about K&N Replacement Air Filter:

        This is the 9th car I will have installed one of these filters on. The range of improvement has varied depending on the car, but has always improved performance and fuel mpg. Greatest improvement was on a 93 capri 1.5 ltr engine. Least on 08 RX8. This filter is for a 2014 v6 mustang, can't say what improvement will be, car is being built next wk, exp. del. by 7/1. Filter is here waiting for car, I think that ans what I think about K&N filters. (save paper filter you remove, to be instaled while K&N dries, I keep them in the box for when I clean it. Filters do not come with cleaner or oil kit (kit lasts a long time). Good Luck. DL

        • Was this a gift?:
        • No

        Comment on this reviewHelp Icon

        (1 of 2 customers found this review helpful)

         
        5.0

        Improvement over paper stock filter

        By 

        from Crestline, CA

        About Me Competitive Driver

        Verified Buyer

        Pros

        • Durable
        • Easy To Use
        • High-Performance

        Cons

          Best Uses

            Comments about K&N Replacement Air Filter:

            K&N makes the best filters period. I use the air filters and their oil filters "only" in all my vehicles. Top notch product.

            • Was this a gift?:
            • No

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            Do you have questions about this product?

             

            Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

            1 Question | 1 Answer
            Displaying question 1
            • Q:

              Do you have to use oil on this filter?
              Asked on 9/12/2012 by Vinnie from North Alabama

              1 answer

              • CUSTOMER CARE

                A:

                Yes, this K&N Panel Type Cotton Gauze Air Filter (Part# 33-2431) should be re-oiled. The filter re-oiling amount should be 1.69 oz (50 ml). For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                Answered on 9/13/2012 by Rick from AAP
            Displaying question 1

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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.