$54.99 USD
MSRP $84.19 34.7% Off
Free Ground Shipping!
In Stock & Ready to Ship!
Find a Dealer

K&N 33-2451 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   55 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®
The K&N 33-2451 Air Filter fits some Hyundai Elantra, Hyundai Elantra Coupe, Hyundai Elantra GT, Hyundai I30, Hyundai i30 II, Hyundai i30 III, Hyundai i40, Hyundai IX25, Hyundai ix35, Hyundai Langdong, Hyundai Santa Fe II, Hyundai Tucson, Kia Carens, Kia cee d, Kia Cerato, Kia Cerato Koup, Kia Forte, Kia Forte Koup, Kia Forte5, Kia K2, Kia K3, Kia KX3, and Kia Sportage models. See vehicle applications link for details.
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
Height0.875 in (22 mm)
Outside Length10.125 in (257 mm)
Outside Width6.5 in (165 mm)
Package Contents1 Air Filter
Package Quantity1
Product StylePanel Air Filter
Weight1 lb (0.5 kg)
Filter Re-Oiling Amount0.86 oz (26 ml)
Product Box Height13.56 in (345 mm)
Product Box Length7.72 in (196 mm)
Product Box Width1.75 in (44 mm)

K&N 33-2451 Air Filter Product Reviews

Friday, December 29, 2017 - Part 33-2451
Engine runs much smoother and more efficient, fitted to my recently bought KIA Sportage

Mike Haywood
United Kingdom
Monday, December 4, 2017 - Part 33-2451
Product is excellent, no regrets buying it. However was upset that I added another order the following day and the couldn't combine the two orders so I didn't receive the bonus free hat.I would like a hat shipped to me....thank you.

Jerry Park
Peoria, Arizona
Monday, November 20, 2017 - Part 33-2451
Definitely recommended product. Keep it up!

Reginald Gapasin
King Khalid International Air, Saudi Arabia
Monday, September 11, 2017 - Part 33-2451
In the short time that I have had the air filter, my milage has improved. Not quite sure how much because I haven't as yet taken a road trip, but I have noticed that my mpg around town has improved. I am very happy with the product.

Gene Tice
Pullman, Washington
Monday, August 21, 2017 - Part 33-2451
All my equipment have K&N filters for performance and the ability to clean and go features. I recommend K&N products to all who want performance, reliability and quality in performance air cleaner applications.

Steven Monty
Lakeville, Massachusetts
Saturday, March 18, 2017 - Part 33-2451
Excellent product, like K&N always is.

Kelly Rothermel
Plainfield, Wisconsin
Monday, November 14, 2016 - Part 33-2451
I love my new filter. It was easy to install and I have seen increased MPG, which is awesome.

Bryon Kelly
Davenport, Florida