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K&N 33-2439 5.0 out of 5 stars 6 Customer Reviews
Replacement Filters > Replacement Air Filter

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33-2439
 
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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 virtually every vehicle 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.

[More Information on Replacement Air Filters]
  • 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®


Product Specifications 
Air Filter Shape:Panel
Filter Material:Cotton Gauze
Filter Re-Oiling Amount:1.73 oz (51 ml)
Height:1.25 in (32 mm)
Outside Length:11 in (279 mm)
Outside Width:8.875 in (225 mm)
Package Contents:1 Air Filter
Package Quantity:1
Part Number:33-2439
Product Box Height:11.56 in (294 mm)
Product Box Length:10.44 in (265 mm)
Product Box Width:1.75 in (44 mm)
Product Style:Panel Air Filter
Weight:1.6 lb (0.7 kg)


Product Reviews      Review part 33-2439

 I just bought a new 2014 GMC Terrain and I did what I've done with the last eight new vehicles I've purchased I replaced the original factory air filter with a K&N filter. In every case, I've seen an improvement in fuel economy and an increase in horsepower. What's not to like about that?!
Jim Sharp, Plainfield, Indiana
 Product is fine. I have used K&N filters in my cars and trucks for years. Never had a problem.
Bill Aberle, Jackson, New Jersey
 Performance has improved on my Chevy Equinox I feel.
Gary, Richmond Kentucky
 I've been using K&N for years now. I recommend it to all friends and family. My wife likes it in her 2014 Chevy Euinox car now she says she gets better gas mileage and gave her a little more power. I got one on my 2007 Chevy Silverado LT and on my 1971 Chevy RS Nova. I wouldn't buy anything else but K&N . I even use the K&N oil filter too.
Joe, Westminster Colorado
 Have been using K & N filters for many years and will continue to do so. Great product.
RALPH MARTIN, MIAMI, Florida
 I HAVE HAD GREAT RESULTS WITH THIS FILTER, SMOOTHER PEFORMANCE, INCREASED POWER, FASTER RESPONES TIMES.
JAMIE WARD, Humble,Texas