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K&N 33-2431 5.0 out of 5 stars 5 Customer Reviews
Replacement Filters > Replacement Air Filter

 List Price: $84.79
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33-2431
 
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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
33-2431 Cross Reference
33-2431 Vehicle Applications
Air Filter Test Data
News Story - Add Performance to 2010, 2011, 2012 and 2013 Ford Mustang with a K&N Lifetime Air Filter


Part 33-2431 Product Specifications
Product Style: Panel Air Filter
Height: 1.25 in (32 mm)
Outside Length: 12.25 in (311 mm)
Outside Width: 9.625 in (244 mm)
Air Filter Shape: Panel
Filter Material: Cotton Gauze
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 1.69 oz (50 ml)
Weight: 1.9 lb (0.9 kg)
Product Box Length: 12.5 in (318 mm)
Product Box Width: 10.38 in (264 mm)
Product Box Height: 1.69 in (43 mm)



Product Reviews    See all reviews!  Review part 33-2431

 Best filter on the market. This is the 12th car with a K&N filter and I will never use anything else.
Lawrence McMurtry, King George, Virginia
 I have used K&N filters for the last 20 years. 1) 1992 318 Dodge Dakota pickup truck 2) 1999 Plymouth Prowler and the 3rd a 2014 Ford Mustang convertible. Great filter.
Ed Jacobs, Wentzville, Missouri
 Amazing product. Added 3 more mpg. Gave my throttle a crisper response. I am saving to buy a K&N cool air intake because of how impressed I am with just the performance of this one life time filter. So thank you for an awesome product.
Michael Gingras, Fort Benning Georgia