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33-2331
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K&N 33-2331 Air Filter

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   11 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)
Height1.188 in (30 mm)
Outside Length16.813 in (427 mm)
Outside Width5 in (127 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height17.19 in (437 mm)
Product Box Length8.31 in (211 mm)
Product Box Width1.75 in (44 mm)
Product StylePanel Air Filter
Weight1.1 lb (0.5 kg)

K&N 33-2331 Air Filter Product Reviews

Monday, July 18, 2016 - Part 33-2331
Instantly noticeable increase in pep, take-off and engine strain noise (reduced) in a high mileage VW Jetta that just had a new air filter placed 6 months previous. Second K&N filter owned on my vehicles and I cannot say enough positive about them. The hype is not an exaggeration.

Stuart Greene
Oak Park, Illinois
Tuesday, July 5, 2016 - Part 33-2331
I use K&N in all my autos(2008 Passat, 2010 Golf, 2010 F150, 2011 Pathfinder). Have for 20 years now, hands down the best filter on the market.

Eric Causey
Bedford, Texas
Wednesday, June 8, 2016 - Part 33-2331
It was a perfect fit. A little pricy, but if it meets up with its description, its worth the price. I will be ordering another one for my second car.

Juan Carlos Rodriguez
Bethlehem, Pennsylvania
Friday, April 8, 2016 - Part 33-2331
Great Product!

Chester Humphrey
Allentown, Pennsylvania
Monday, January 11, 2016 - Part 33-2331
Product came exactly as advertised on exactly the day it was supposed to. Very fast! Would gladly do business again

John
Washington
Monday, November 30, 2015 - Part 33-2331
K&N in my rides since 1990 nothing better.

Bruce
Florida
Thursday, October 29, 2015 - Part 33-2331
Looks and fits great. Engine sounds a bit different and I will not have to think about maintaining it for about two or three years. Thanks for the prompt shipment.

Tom
Grant, Michigan