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33-2385
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K&N 33-2385 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.8 out of 5 stars   75 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 Amount2.21 oz (65 ml)
Height1 in (25 mm)
Outside Length10.5 in (267 mm)
Outside Width9.875 in (251 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
Weight1.4 lb (0.6 kg)

K&N 33-2385 Air Filter Product Reviews

Tuesday, August 16, 2016 - Part 33-2385
Just received the filter & installed it in my truck. Haven't had it in long enough to notice any horsepower or mpg gains. However, if this K&N filter works as well as prior K&N filters I have used, I'm sure I won't be disappointed.

Lawrence Whitmire
Antwerp, New York
Thursday, August 11, 2016 - Part 33-2385
The filter is No. 1 in the industry. I've been using them forever. If they are good enough for NASCAR, then you know they perform. And they do! I bought one for my mustang and another for my new F150, and as a present for Son-In-Law and his new Ford limited. He was amazed that they do as advertised. They are the best filters in the industry. Thank you and keep doing what you do!

Rev. Arthur MartinezRTHUR MARTINEZ
Alta Loma, California
Monday, August 8, 2016 - Part 33-2385
Quick and easy replacement. Cheers to never buying a new air filter again.

Bernard Leerkes
Ballston Spa, New York
Wednesday, August 3, 2016 - Part 33-2385
Thank you for excellent service. Everything arrived in a very timely manner and in excellent shape. Thanks, Russ

Russell Cole
Seekonk, Massachusetts
Tuesday, July 19, 2016 - Part 33-2385
Don't know why everyone does not have one. It's everything you claim it is and then some. This is my second one as I have a new truck. My wife and daughter both have one and we all love it.

Walter Wollison
LaSalle, Canada
Thursday, July 14, 2016 - Part 33-2385
The filter fit perfectly! I put it in before I even went through the first tank of gas, so I can't really comment on fuel economy or power improvements. Pro tip: keep the old stock filter to use while you're cleaning the K&N filter.

William Raatz
Boulder, Colorado
Friday, July 1, 2016 - Part 33-2385
Great!

John Candelaria
Terre Haute, Arizona