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K&N 33-2031-2 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   43 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 Amount1.06 oz (31 ml)
Height1.125 in (29 mm)
Outside Length11 in (279 mm)
Outside Width6.563 in (167 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height13.56 in (345 mm)
Product Box Length7.72 in (196 mm)
Product Box Width1.75 in (44 mm)
Product StylePanel Air Filter
Weight1.1 lb (0.5 kg)

K&N 33-2031-2 Air Filter Product Reviews

Monday, September 19, 2016 - Part 33-2031-2
Fantastic build quality and design. Got my MPGs back, plus fast, smooth, powerful acceleration. Ordered, shipped and received quickly, installs in seconds. Recommend to family and friends for their vehicles. Thanks

Alan Graham
Savage, Minnesota
Thursday, September 15, 2016 - Part 33-2031-2
The replacement filter was a perfect fit and easy to install. Since installing, I have experienced an increase in my mpg, along with an improvement in the cars overall performance.

James Faulkner
Newbury Park, California
Tuesday, September 6, 2016 - Part 33-2031-2
Great product, on time delivery. Would highly recommend.

Rick Warnick
St. Peters, Missouri
Tuesday, August 23, 2016 - Part 33-2031-2
Filter arrived on time as promised in good shape. Instructions rather generic. Seemed to imply I would get a better seal if I used K&N sealant that no one here seemed to know anything about. Installed without detailed instructions and heard no leaks so hoping for the best. Have used K&N filters or intake systems for decades. Disappointed that K&N doesn't offer a cabin filter for my vehicle.

Don Gerrish
Orange Park, Florida
Monday, August 8, 2016 - Part 33-2031-2
Good product .

Donovan March
Queens Village, New York
Thursday, July 21, 2016 - Part 33-2031-2
I have this filter for my Nissan Altima 3.5 V6. I have seen that my gas mileage went up from 23city up to 26.2 in the city, well worth the money. I also get better power from car with K&N air filter.

Naperville, Illinois
Tuesday, July 19, 2016 - Part 33-2031-2
Obviously better quality than factory issued. I have paid for numerous filters in my time and this will stop that problem, not to mention the quality is great.

Steven Raymond
Rowlett, Texas