K&N 33-2451

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   22 Customer Reviews
List Price: $80.59
Your Price: USD $54.99

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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 Amount0.86 oz (26 ml)
Height0.875 in (22 mm)
Outside Length10.125 in (257 mm)
Outside Width6.5 in (165 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 lb (0.5 kg)

Product Reviews

See all reviews!
Review part 33-2451
Thursday, September 03, 2015 - Part 33-2451
Absolutely love K&N air filters. I am 23 and since learning about them a few years back have already bought 4 of them. I have put these filters into two different CR-V's, an 04' Chrysler 300M and an Elantra. I would recommend to anyone, especially since I am about to buy my fiance's parents filters for their vehicles two. Actually saw an increase in gas mileage on the highway especially in my Elantra. Gained an extra 1-2 mpg for sure. Thanks

Josh McCarthy
Gulfport, Florida
Friday, August 07, 2015 - Part 33-2451
I have been using the K & N brand for last seven (7) years in my 1974 corvette, 1962 corvette, 2002 PT Cruiser, 1999 Eclipse GSX & 2013 Veloster. Always noticed better mileage , idle , performance and ease of maintenance. Great product

Tom Dedo
Cleveland, Ohio
Thursday, July 30, 2015 - Part 33-2451
Superb service as always cannot fault your company. Many thanks once again.

Sally Catchpole
Tuesday, July 14, 2015 - Part 33-2451
Use K&N filters in all my vehicles. They last over 100,000 miles and give me improved fuel economy.

Mark Sendrick
Thursday, June 25, 2015 - Part 33-2451
I am really pleased with this filter. It took away the bog down on take off I was experiencing. I would recomend this product. Top ratings for the online service an delivery.

Tuesday, June 02, 2015 - Part 33-2451
Excellent product, every car I own has a K&N drop in filter or a cold air intake on it for one reason, quality. More throttle response was first thing I noticed and more passing power on the Hwy. MPG has improved 1-2 mpg, and I never have to replace it, just clean it when it's dirty, thanks again K&N you have developed me into a life long customer.

Monday, April 27, 2015 - Part 33-2451
I love the K&N brand and this filter. It dropped in perfectly and is a nice replacement to the regular filters. Plus, I love the fact that it is washable and the lifetime warranty is a plus.

Andrew Williams
Mobile, Alabama