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33-2137
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K&N 33-2137 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   6 Customer Reviews
  • 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®
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.

[More Information on K&N Replacement Air Filters]

Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.25 oz (37 ml)
Height1.063 in (27 mm)
Inner WireNo
Outside Length9.938 in (252 mm)
Outside Width8.5 in (216 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height11.56 in (294 mm)
Product Box Length10.44 in (265 mm)
Product Box Width1.75 in (44 mm)
Product StylePanel Air Filter
Top StyleOpen
Weight1.4 lb (0.6 kg)

K&N 33-2137 Air Filter Product Reviews

Tuesday, August 30, 2016 - Part 33-2137
Awesome product. Delivered on time and properly packaged. Fits like a glove in my Lexus I immediately felt 3+hp and is quiet when cruising. I highly recommend, to give your car the lungs to breathe.

Pedro Cruz
Orlando, Florida
Thursday, August 25, 2016 - Part 33-2137
So far so good. But just have had in for a couple of weeks. Again, so far I like what I have seen.

Andrew Salvadore
Norcross, Georgia
Monday, March 14, 2016 - Part 33-2137
I've used K&N products on all my vehicles for years, have always been totally pleased with the results. Internet ordering process was quick and easy. I would recommend K&N to anyone.

Bill Dugas
Oakridge, Oregon
Monday, August 11, 2014 - Part 33-2137
Very easy to install , shipped on time, quality of the product is amazing and car feels a lot more responsive than expected. I have been buying K&N filters for many years and will continue to do so. Very helpful customer support as well when you call in with questions.

Don Algama
Chicago, Illinois
Monday, April 28, 2014 - Part 33-2137
I received the air filter timely. It installed easily and is performing very well.

Ray Jones
Weatherford, Texas
Friday, December 13, 2013 - Part 33-2137
Excellent after market application. Simple steps to recharge filter. Treating your vehicle with this product puts you in charge of its care and feeding. Why trust some knucklehead with an inferior paper filter that may or may not fit? It's your machine...give it the best!

Bill Stevenson
Riverside, California