K&N 33-2387

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9 out of 5 stars   14 Customer Reviews
List Price: $87.60
Your Price: USD $55.99

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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 K&N 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 ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount2.73 oz (81 ml)
Height1.375 in (35 mm)
Outside Length12.75 in (324 mm)
Outside Width12 in (305 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height14 in (356 mm)
Product Box Length12.25 in (311 mm)
Product Box Width1.75 in (44 mm)
Product StylePanel Air Filter
Weight2.6 lb (1.2 kg)

Product Reviews

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Review part 33-2387
Thursday, November 05, 2015 - Part 33-2387
Well. That was a know Brainer. As soon as I put the peddle to the floor, I knew that the difference in acceleration was outstanding. Thank You very much. Have not changed the cabin filter yet. JOHN PAULUS

John Paulus
Berkeley, Illinois
Tuesday, September 01, 2015 - Part 33-2387
I am amazed how much this filter enhanced performance.

George Craig
South Texas
Tuesday, August 18, 2015 - Part 33-2387
Since I replaced the stock Toyota air filter with the K &N filter I've seen a slight difference in fuel mileage and horse power. Slight but noticeable.

Thomas Grieve
Tuesday, June 30, 2015 - Part 33-2387
I put K&Ns in all of my vehicles. Love the serviceability of the filter instead of just replacing the junk paper filter every 2 years. The only reason it didn't get 5 stars is the fact that I can hear a whistle coming from the air box now with the higher flow.

Roanoke, Virginia
Friday, April 10, 2015 - Part 33-2387
Awesome quality. Process to order and deliver was exceptional.

Richard Campbell
Herndon, Virginia
Friday, January 23, 2015 - Part 33-2387
Just now working on second tank of gas. Can't quite tell yet, but mileage seems to be just a little bit better with the new filter. I can definitely feel a difference in acceleration and overall engine output on my Tundra - it even seems to coast better with the improved air flow. Can't quite give it five stars because of the initial cost and the cost of the refurbish kits for when it's time to clean. Otherwise, I like it - makes you want to floor it just to hear the roar of the engine!

Portland, Oregon
Thursday, December 25, 2014 - Part 33-2387
I have a Toyota Tundra. It's a very nice truck, however it loves gas. This K&N air filter is giving me substantially better mileage. I now like my truck even better!

Westville, Indiana