K&N 33-2399 Air Filter

Replacement Filters / Replacement Air Filter
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$59.99 USD
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Product Overview

  • 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 33-2399 Air Filter fits some Fiat Sedici, Infiniti EX35, Infiniti EX37, Infiniti G25, Infiniti G35, Infiniti G37, Infiniti Q40, Infiniti Q60, Infiniti QX50, Nissan 350Z, Nissan 370Z, Nissan Fairlady Z, Nissan Skyline 250GT, Nissan Skyline 350GT, Nissan Skyline 370GT, and Suzuki SX4 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]
Air Filter ShapePanel
Filter MaterialCotton Gauze
Height1 in (25 mm)
Outside Length7.125 in (181 mm)
Outside Width6.625 in (168 mm)
Package Contents1 Air Filter
Package Quantity1
Warranty1,000,000 Miles/10 Year
Product StylePanel Air Filter
Weight0.9 lb (0.4 kg)
Filter Re-Oiling Amount0.61 oz (18 ml)
Product Box Height9.69 in (246 mm)
Product Box Length7.72 in (196 mm)
Product Box Width1.75 in (44 mm)
WARNING: Cancer and reproductive

K&N 33-2399 Air Filter Product Reviews

Wednesday, March 13, 2019 - Part 33-2399
Product is great. I feel the added HP and I'm now getting 3 more mpg.

Michael Tarduno
Port Jefferson Station, New York
Monday, October 29, 2018 - Part 33-2399
GREAT air filter for my Infiniti G35; its like getting turbo charger installed.

Laura Bramble
McDonough, Georgia
Sunday, July 8, 2018 - Part 33-2399
Third time I've changed stock to K&N Filters. Always glad when I do. Great fit, easy install and feel the increased performance immediately.

Roy Simon
Boynton Beach, Florida