$58.99 USD
MSRP $91.99 35.9% Off
Free Ground Shipping!
In Stock & Ready to Ship!
Find a Dealer

K&N 33-2458 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.7 out of 5 stars   7 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 Amount1.81 oz (54 ml)
Height1 in (25 mm)
Outside Length11.125 in (283 mm)
Outside Width10.5 in (267 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
Weight1.1 lb (0.5 kg)

K&N 33-2458 Air Filter Product Reviews

Friday, September 9, 2016 - Part 33-2458
Product is great and easy to install.

Ray Kushner
Venice, California
Friday, May 20, 2016 - Part 33-2458
Installed in 135i with no mods. Haven't noticed increased acceleration, but i think I'm getting slightly better mileage.

Monday, February 1, 2016 - Part 33-2458
Fits better than stock filter. Definitely noticed more power and slight increase in throttle response on my turbocharged BMW 335i. Faster spool up and noticeably harder pulls under full throttle. I've been using K&N filters on my turbocharged cars for 15 years, always with the same results. Best performance filters on the market.

Mike S
Thursday, August 13, 2015 - Part 33-2458
Have a 2011 335i sedan and it fit perfectly. Nice touch to have it pre-oiled out of the box. No doubts it will perform better than stock without the expense of upgrading the air filter system.

Corey Chinn
Brentwood, California
Monday, April 21, 2014 - Part 33-2458
Slipped right in, 3 minute install max. Noticeable increased throttle responsiveness. Noticeable mpg boost. Additional off the line acceleration.

Fort Worth, Texas
Monday, March 3, 2014 - Part 33-2458
As soon as I changed out the air filters, I noticed the difference. Faster response time and quick to speed up. For the last 5 years, all of my cars have had a K&N air filter in them. Would recommend to anyone.

New Jersey
Monday, January 6, 2014 - Part 33-2458
Great Product, less restriction at the AirBox.

Christopher Beccles
Gaithersburg, Maryland