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33-2018
$54.99 USD
MSRP $85.99 36.1% Off
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K&N 33-2018 Air Filter

Replacement Filters > Replacement Air Filter
  • 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 Amount1.76 oz (52 ml)
Height1.563 in (40 mm)
Outside Length13.375 in (340 mm)
Outside Width6.563 in (167 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height17.19 in (437 mm)
Product Box Length8.31 in (211 mm)
Product Box Width1.75 in (44 mm)
Product StylePanel Air Filter
Weight1.4 lb (0.6 kg)

Customer Feedback

Awesome filter
I purchased your direct replacement K&N filter for my 94 Jeep Cherokee.  I noticed an increase in both performance and I am close to the original factory fuel economy again considering the vehicle has over 240 thousand miles.  The sound from the filter box has also changed, giving the vehicle a deeper roar from under the hood when I step on the gas, really gets attention.  I am also an avid off road enthusiast and just love being able to remove the filter after a wet, dusty, or even muddy day of fun in the sun and clean it right up.  I have also notice that the inside of my intake hose leading to the TB remains cleaner than before, which really is a blessing with all the dirt and dust I put my Jeep through.  Thanks for a great product and I look forward to one of your more direct airflow systems.

Scott Quinlin
Cypress, Texas
This cold air intake really improved the performance of my 2015 Jeep Grand Cherokee Summit. It's awesome!

John
Parsippany, New Jersey
I figured that to get the advertised 475 horses out of the normally-aspirated 6.4 l engine in my 2013 SRT-8 Grand Cherokee, Jeep must have had it breathing about as well as it could. Wrong. When this K&N PIK finally came out (jab to K&N) I bought it immediately even though K&N had failed to notify me that it was available as I had requested (jab again). It was easier to install than the instructions implied - and the instructions are good. The horsepower gain isn't noticible to me at low speeds. But the difference at the top end is incredible. It seems to leap when I nail it and it goes from 60 to 100+ in nothing (well, maybe a little more than nothing). I could possibly be influenced by the awesome fa-whoooom intake sound - which alone is worth the price of the K&N. But I don't think so.

Steve Kimbrell
Houston, Texas