Replacement Air Filter
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K&N Replacement Air Filter

Part No. 33-2356 Warranty Details  

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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 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:1.5 in
Material:Cotton Gauze
Outside Length:13.5 in
Outside Width:10.75 in
Shape:Panel

REVIEW SNAPSHOT®

by PowerReviews
K&NReplacement Air Filter
 
2.3

(based on 3 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

33%

of respondents would recommend this to a friend.

Reviewed by 3 customers

Displaying reviews 1-3

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(2 of 4 customers found this review helpful)

 
1.0

Didn't work this time around

By 

from Raymore, MO

About Me Auto Enthusiast, Mechanic

Pros

  • Durable
  • Lightweight

Cons

  • Incompatible

Best Uses

  • Large Cars

Comments about K&N Replacement Air Filter:

I installed this in an 06 Cadilac SRX with a V8 and after just a couple thousand miles the check engine light came on. I was in CA at the time so took it to a shop where they diagnosed the problem as a MAS air sensor gone bad. The mechanic said he had seen it a couple other times and said being the filter was so close to the sensor it caused sensor to fail and only recommended using paper filters. I've used K&N on my other vehicles for over 100K miles with no problem but it doesn't work on the SRX.

  • Was this a gift?:
  • No

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(2 of 2 customers found this review helpful)

 
1.0

Not worth it when it does damage

By 

from VA

Verified Reviewer

Pros

    Cons

    • Low Quality

    Best Uses

      Comments about K&N Replacement Air Filter:

      K&N will allow a little more air in at wide open throttle. The problem is it also lets in a lot more dirt. This dirt can coat and even damage parts like your Mass Air Flow Sensor (MAF).

      The only time I have seen them produce any real world returns is on a highly modified race car. And even then race cars, unless K&N pays them, will still run a paper filter as dirt can cause the engine to lose more power then it gains from the filter.

      So save your money, and your car, and use the regular paper filter made for your car.

      • Car & Truck:
      • Auto Enthusiast, Mechanic

      Comment on this reviewHelp Icon

      (1 of 1 customers found this review helpful)

       
      5.0

      K&N Filters Rock

      By 

      from Va Beach, VA

      See all my reviews

      Verified Buyer

      Pros

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

      Cons

      • None

      Best Uses

      • Large Cars
      • Small Cars
      • Trucks

      Comments about K&N Replacement Air Filter:

      Having run chassis dynos for 10+ years, the K&N is a no-brainer. Improves torque, time after time. My driveway has 3 vehicles with over 600,000 miles between them, and K&N filters them all.

      • Car & Truck:
      • Auto Enthusiast, Mechanic

      Comment on this reviewHelp Icon

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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.