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Replacement Filters > Replacement Air Filter

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33-2398
 
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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 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®
Available Information
33-2398 Cross Reference
Installation Instruction Sheet
33-2398 Vehicle Applications
Air Filter Test Data


Part 33-2398 Product Specifications
Product Style: Panel Air Filter
Height: 1 in (25 mm)
Outside Length: 9.25 in (235 mm)
Outside Width: 8.875 in (225 mm)
Air Filter Shape: Panel
Filter Material: Cotton Gauze
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 1.1 oz (32 ml)
Weight: 1.4 lb (0.6 kg)
Product Box Length: 10.19 in (259 mm)
Product Box Width: 3.94 in (100 mm)
Product Box Height: 10.31 in (262 mm)



Customer Feedback      Be the first to review part 33-2398

I've been using K&N air and oil filters for many years now, cars and motorcycles. The last car I had was a BMW 525i and I consistently calculated a 3-4 mpg (highway) improvement in gas mileage. I recently purchased a 2012 Infiniti M37 and am averaging 2-3 mpg improvement on the highway. I just like the fact I don't have to change the paper filters often and do notice better gas mileage on the highway which makes me feel a little better since I have to use premium grade. When I checked all the auto parts stores they didn't have them or told me they were on backorder. I called K&N directly and they were shipped out quick. Customer service was above average and worked efficiently. And if you ever decide to engineer and sell automobile CABIN FILTERS that have carbon/charcoal layer and are oiled with a light scent, SIGN ME UP! I hate changing the air filters so often. There is a model of the Infiniti that has a feature called Forest Air that people seem to love. Unfortunately, mine doesn't have it. Just sayin. Thanks.
Bo Lawrence, Austin, Texas
I purchased this air filter (33-2031-2) for a 2006 Red Infiniti Coupe. I noticed the change immediately. First I noticed the gas savings, The car sounds completely different. Definitely more horsepower. I love it. I really do. Change your life change your filter it is worth it.
Ingrid Gardner, Bronx, New York
On an Infiniti EX35 AWD Journey, my gas consumption went from 10 litres/100km to 9.2 litres/100km. Over the lifetime of the car and the fact the filters can be cleaned and recharged, the savings are worth the cost...highly recommended.
Mike, Canada