K&N 33-2125

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
List Price: $77.21
Your Price: USD $52.99

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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 Amount1.32 oz (39 ml)
Height0.75 in (19 mm)
Inner WireNo
Outside Length9.875 in (251 mm)
Outside Width8.25 in (210 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
Weight1.1 lb (0.5 kg)

Product Reviews

Review part 33-2125
Tuesday, July 21, 2015 - Part 33-2125
Perfect fit for my 2004 Audi A6 2.7L.

Brockton, Massachusetts
Wednesday, May 20, 2015 - Part 33-2125
I've purchased your product for my old 1991 Toyota 4-Runner in the past and was highly pleased. I recently started a new job and commute over 100 miles round-trip every day. I purchased the K&N air filter for my 2005 Audi Allroad and installed it with no problem. On the first road trip, my cars tank capacity calculator was going crazy It estimated that the tank of gas would go 390 miles when we first started out. By the end of the trip over 70 miles, the tank capacity calculator was reading 420 miles.Talk about impressed, I just ordered another air filter for my wife's car.

Al D.
Nashua, New Hampshire
Thursday, March 19, 2015 - Part 33-2125
Perfect fit, and easy to install on my Audi. Once again, another great product from K & N.

Daniel R Yoder
Harrisonville, Pennsylvania
Thursday, September 11, 2014 - Part 33-2125
It fits perfect on my Passat.

Ioannis Kaldelis
Athens Neo Iraklio, Greece
Friday, August 01, 2014 - Part 33-2125
Fifth vehicle equipped with K&N filter. No Complaints. Just perfect.

Thursday, May 29, 2014 - Part 33-2125
Get about 4mpg better now and the twin Tunis love it! 2.7t Only filter I will ever run on my Audi.

Kuna, Idaho