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Replacement Filters > Replacement Air Filter

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33-2425
 
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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]
Available Information
33-2425 Cross Reference
Air Filter Test Data
News Story - 2009 to 2012 Acura RL Sports Sedan Gets Star Treatment from K&N Air Filter Technology
33-2425 Vehicle Applications


Part 33-2425 Product Specifications
Product Style: Panel Air Filter
Height: 1.25 in (32 mm)
Outside Length: 12 in (305 mm)
Outside Width: 5.625 in (143 mm)
Air Filter Shape: Panel
Filter Material: Cotton Gauze
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 0.86 oz (25 ml)
Weight: 1.2 lb (0.6 kg)
Product Box Length: 7.72 in (196 mm)
Product Box Width: 1.75 in (44 mm)
Product Box Height: 13.56 in (345 mm)



Accessories
99-5050.jpg
99-5050 - Filter Care Service Kit - Squeeze

Customer Feedback      Be the first to review part 33-2425

For the past 18 years I have used K&N air filters in all my vehicles. Currently, I own a 2010 Acura RL in which I installed the correct corresponding K&N filter two years ago. Recently I purchased a 2010 pre-owned Lexus LS 460 and on November 20, 2013 I had two K&N filters intalled in this vehicle. As with past vehicles, I am looking forward to better performance and improved gas mileage in these two vehicles. SGFrederick
Steve Frederick, West Chester, Pennsylvania
These filters kick butt. I put an air filter (not CAI, just the drop-in type) in our Mazda MPV (a van) and it actually has the Zoom-Zoom that silly Mazda tagline promoted! Nice boost of HP!

Since that one did so well, I decided to put one in my Acura RL. The car already had power, but it seemed to lack the smooth acceleration from low-end to high-end I expected when it got broken in. I removed the filter, dropped the K&N filter in, and it now has the smooth power I had expected. Not a big HP jump, but the smoothness is much improved.

Car manufacturers should use them!
Michael G, Pittsburgh, Pennsylvania
I just installed the K & N system on my 2004 4.6 Ford Explorer. My gas mileage has improves around town by 2 mpg & 4 mpg on highway. The throttle response is amazing. I can tell HP has improved. I have a performance rear end so it really moves for an SUV. Next step s to get filter for my 1997 Acura 3.5 RL with only 49,000 miles.
Just a great product.
Fred Delano, Memphis, Tennessee

K&N 33-2425 fits the following:
2012 ACURA RL 3.7L V6 F/I - All
2011 ACURA RL 3.7L V6 F/I - All
2010 HONDA LEGEND 3.7L V6 F/I - All
2010 ACURA RL 3.7L V6 F/I - All
2009 HONDA LEGEND 3.7L V6 F/I - All
2009 ACURA RL 3.7L V6 F/I - All