Replacement Air Filter
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K&N Replacement Air Filter

Part No. 33-2135 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:1.625 in
Material:Cotton Gauze
Outside Length:12.5 in
Outside Width:9.875 in
Shape:Panel

REVIEW SNAPSHOT®

by PowerReviews
K&NReplacement Air Filter
 
4.6

(based on 13 reviews)

Ratings Distribution

  • 5 Stars

     

    (9)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

92%

of respondents would recommend this to a friend.

Pros

  • Easy to use (12)
  • Durable (9)
  • High-performance (9)
  • Lightweight (3)
  • Versatile (3)

Cons

No Cons

Best Uses

  • Trucks (9)
  • Small cars (7)
  • Large cars (6)
    • Reviewer Profile:
    • Truck enthusiast (5), Auto enthusiast (4)
    • Was this a gift?:
    • No (10)

Most Liked Positive Review

 

This one saves you money in the longrun.

I purchased this filter for my Chevy Truck. I have been using this type of air filter in my FJ Cruiser for the last 3 years. It works great. I drive over 40...Read complete review

I purchased this filter for my Chevy Truck. I have been using this type of air filter in my FJ Cruiser for the last 3 years. It works great. I drive over 40 miles to work and the last 6 miles are bumpy dirt roads. The dust can clog an air filter and having the ability to clean and re-use is a big plus. I have to clean my Air Filter at least every two months of driving. This could really add up if I were having to by new air filters each time.

VS

Most Liked Negative Review

 

It seemed good.

I had one on a previous truck and it was better than average. On my Silverado 2500HD however I immediately noticed a (.1mpg) decrease in milage. And it has not gotten any...Read complete review

I had one on a previous truck and it was better than average. On my Silverado 2500HD however I immediately noticed a (.1mpg) decrease in milage. And it has not gotten any better, even after two tanks of gas. That is a small decrease but it will add up to lost dollars in the future, especially when I will need to buy +$20.00 of filter cleaning products down the road. I cannot recommend this to friends like I use to. I will soon be going on a 3000 mile trip and hope this fuel usage issue corrects and goes to positive milage in my truck.

Reviewed by 13 customers

Displaying reviews 1-10

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5.0

I always use these filters in my trucks

By 

from Boston

About Me Auto Enthusiast, Truck Enthusiast

Verified Buyer

Pros

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

Cons

    Best Uses

    • Large Cars
    • Small Cars
    • Trucks

    Comments about K&N Replacement Air Filter:

    I always use these filters.

    • Was this a gift?:
    • No

    Comment on this reviewHelp Icon

     
    5.0

    Great Product

    By 

    from Parkland, FL

    About Me Auto Enthusiast

    See all my reviews

    Verified Buyer
    Helpful Reviewer

    Pros

    • Durable
    • Easy To Use
    • High-Performance

    Cons

      Best Uses

      • Large Cars
      • Small Cars
      • Trucks

      Comments about K&N Replacement Air Filter:

      Great product, easy to install. Excellent engine sound after installation.

      • Was this a gift?:
      • No

      Comment on this reviewHelp Icon

       
      5.0

      This one saves you money in the longrun.

      By 

      from Odessa, Tx

      About Me Long Drives To Work

      See all my reviews

      Ask me a question

      Verified Buyer
      Helpful Reviewer

      Pros

      • Durable
      • Easy To Use
      • High-Performance

      Cons

        Best Uses

        • Small Cars
        • SUV's
        • Trucks

        Comments about K&N Replacement Air Filter:

        I purchased this filter for my Chevy Truck. I have been using this type of air filter in my FJ Cruiser for the last 3 years. It works great. I drive over 40 miles to work and the last 6 miles are bumpy dirt roads. The dust can clog an air filter and having the ability to clean and re-use is a big plus. I have to clean my Air Filter at least every two months of driving. This could really add up if I were having to by new air filters each time.

        • Was this a gift?:
        • No

        Comment on this reviewHelp Icon

         
        5.0

        great product competitive pricing

        By 

        from Texas

        About Me Casual Driver

        Verified Buyer

        Pros

        • Durable
        • Easy To Use
        • High-Performance

        Cons

          Best Uses

          • Large Cars
          • Small Cars
          • Trucks

          Comments about K&N Replacement Air Filter:

          Great product and works so much better than the disposable air filters, it makes my truck run better and more efficiently.

          • Was this a gift?:
          • No

          Comment on this reviewHelp Icon

           
          3.0

          It seemed good.

          By 

          from Lago Vista, Tx,

          About Me Truck Enthusiast

          Verified Buyer

          Pros

          • Easy To Use

          Cons

            Best Uses

              Comments about K&N Replacement Air Filter:

              I had one on a previous truck and it was better than average. On my Silverado 2500HD however I immediately noticed a (.1mpg) decrease in milage. And it has not gotten any better, even after two tanks of gas. That is a small decrease but it will add up to lost dollars in the future, especially when I will need to buy +$20.00 of filter cleaning products down the road. I cannot recommend this to friends like I use to. I will soon be going on a 3000 mile trip and hope this fuel usage issue corrects and goes to positive milage in my truck.

              • Was this a gift?:
              • No

              Comment on this reviewHelp Icon

               
              5.0

              Better performance

              By 

              from Howell, Michigan

              About Me Auto Enthusiast, Truck Enthusiast

              Verified Buyer

              Pros

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

              Cons

                Best Uses

                • Trucks

                Comments about K&N Replacement Air Filter:

                Pricey, but expected for any quality product. I wish I had purchased this for the first filter change that was 70,000 miles ago. I hope that my fuel mileage increases as the computer adjusts to the new air/fuel mixture, as the 12.5 I get now is no longer practical.

                • Was this a gift?:
                • No

                Comment on this reviewHelp Icon

                 
                4.0

                Good purchase

                By 

                from USA

                About Me Casual Driver

                Verified Buyer

                Pros

                • Easy To Use

                Cons

                  Best Uses

                    Comments about K&N Replacement Air Filter:

                    I don't feel a difference in HP or see any increases on MPG so no idea if K&N's claims are accurate. However the exhaust seems to be a touch louder (which I like) and it should pay for itself after 50k. Very easy to install. Overall I'm happy. Just don't expect obvious improvements to your vehicle performance.

                    • Was this a gift?:
                    • No

                    Comment on this reviewHelp Icon

                     
                    5.0

                    Great Filters

                    By 

                    from Jasper, Ga

                    About Me Auto Enthusiast, Mechanic, Truck Enthusiast

                    See all my reviews

                    Verified Buyer
                    3 or more reviews submitted

                    Pros

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

                    Cons

                      Best Uses

                      • Large Cars
                      • Small Cars
                      • Trucks

                      Comments about K&N Replacement Air Filter:

                      Always a great choice.

                      • Was this a gift?:
                      • No

                      Comment on this reviewHelp Icon

                       
                      4.0

                      K&N filter

                      By 

                      from Dubuque, IA

                      See all my reviews

                      Verified Buyer

                      Pros

                      • Durable
                      • Easy To Use

                      Cons

                        Best Uses

                          Comments about K&N Replacement Air Filter:

                          If I ever need to change an air filter, I always opt for a K&N. I had a K&N cold air intake on my last vehicle, but this time just opted for the replacement filter.

                          • Was this a gift?:
                          • No

                          Comment on this reviewHelp Icon

                           
                          5.0

                          This is not my first K&N or last!!

                          Profile Image

                          By 

                          from Saint Paris,Ohio

                          About Me Truck Enthusiast

                          See all my reviews

                          Verified Buyer
                          3 or more reviews submitted

                          Pros

                          • Durable
                          • Easy To Use
                          • High-Performance

                          Cons

                            Best Uses

                            • Trucks

                            Comments about K&N Replacement Air Filter:

                            The money a [person can save just by reusing is enough for everyone to use them let alone the added fuel savings!!!

                            • Was this a gift?:
                            • No

                            Comment on this reviewHelp Icon

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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.

                            2 Questions | 2 Answers
                            Displaying questions 1-2
                            • Q:

                              does it improve gas mileage?
                              Asked on 6/5/2011 by lee from georgia

                              1 answer

                              • CUSTOMER CARE

                                A:

                                Yes

                                Answered on 6/6/2011 by Just Ask Jacob! from AAP
                            • Q:

                              horse power increase
                              Asked on 10/26/2010 by sarge from fulton ny

                              1 answer

                              • CUSTOMER CARE

                                A:

                                You may see a small gain of horsepower.

                                Answered on 10/26/2010 by Mike the Auto Parts Master from AAP
                            Displaying questions 1-2

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