Replacement Air Filter
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K&N Replacement Air Filter

Part No. 33-2437 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:10.375 in
Outside Width:7.5 in


by PowerReviews
K&NReplacement Air Filter

(based on 1 review)

Ratings Distribution

  • 5 Stars



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  • 1 Stars



Reviewed by 1 customer

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better gas .mileage


from Sarasota Fl.

About Me Auto Enthusiast, Casual Driver, Love To Work On My Stuff, Truck Enthusiast

See all my reviews

Verified Buyer
3 or more reviews submitted


  • Durable
  • Easy To Use
  • High-Performance


  • A little pricey

Best Uses

  • Easy Replacement
  • Small Cars
  • Trucks

Comments about K&N Replacement Air Filter:

.This filter gave new life to my wifes CRV.The old one was really dirty.I kept putting it off because I wanted .KnN.Had to get it online..Love .Advanced Auto,the guys who work in Sarasota stores know there stuff,they saved me money and .time more than once,Anyway the ..KnN filter got me one more mile per gallon on cars computer and the weak four .cyllender ..has more pickup you can feel.

  • Was this a gift?:
  • No

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