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K&N 33-2304 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   60 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.

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Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.06 oz (31 ml)
Height0.938 in (24 mm)
Outside Length8.75 in (222 mm)
Outside Width8.563 in (217 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
Weight0.9 lb (0.4 kg)

K&N 33-2304 Air Filter Product Reviews

See all reviews!
Review part 33-2304
Monday, January 25, 2016 - Part 33-2304
I've only had the K&N filter in my Subaru Outback for a few weeks, but I noticed an immediate increase in power.  The exhaust even sounds a little throatier. Website was a breeze and delivery was very quick. Thanks

Randy Riddle
North Carolina
Thursday, January 21, 2016 - Part 33-2304
Fast service, excellent quality product.

Thursday, January 21, 2016 - Part 33-2304
Excellent fit , E-Z to install .

Lancaster, New York
Tuesday, January 19, 2016 - Part 33-2304
This is the highest quality air filter made today. I hope to keep this in my car until I sell it.

Sunday, January 17, 2016 - Part 33-2304
K&N quality.

Jeff Kemble
Monday, January 04, 2016 - Part 33-2304
Filter works fine. This is my 5th car filter I have installed from K&N. All have been great. I started the car after installing the filter and the engine sounded stronger. Wow! I would strongly recommned to take apart the hose from the filtered side apart prior to changing the filter. I found it quite difficult otherwise. I have an idea. Mark the filter on the edge with an UP arrow.

Robert Hatcher
Spotsylvania, Virginia
Wednesday, December 30, 2015 - Part 33-2304
I use K&N filters on all the vehicles I own.

Eliot Butterfield
Issaquah, Washington