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Replacement Filters > Replacement Air Filter

 List Price: $69.88
Your Price: $47.99

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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
33-2104 Cross Reference
Installation Instruction Sheet
33-2104 Vehicle Applications
News Story - K&N Performance Parts for Honda Civic Add Power & Protection
News Story - Honda CR-V Discovers Lifetime of Performance and Protection with K&N

Part 33-2104 Product Specifications
Product Style: Panel Air Filter
Height: 0.938 in (24 mm)
Outside Length: 7.875 in (200 mm)
Outside Width: 7.563 in (192 mm)
Air Filter Shape: Panel
Filter Material: Cotton Gauze
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 1.25 oz (37 ml)
Inner Wire: No
Top Style: Open
Weight: 1 lb (0.5 kg)
Product Box Length: 10.44 in (265 mm)
Product Box Width: 1.75 in (44 mm)
Product Box Height: 11.56 in (294 mm)

Customer Feedback      Be the first to review part 33-2104

We recently purchased a 1999 Honda CR-v with 27,000 miles. It quickly became obvious the little SUV (2.0 liter 120 bhp) would have trouble keeping up with traffic unless the throttle pedal were on the floor.....something I'd rather avoid.

I recalled a friend telling me he had installed a K & N air filter on his motorhome as the filter was extremely difficult and time consuming to get to. He said the motorhome had better performance after the installation. I thought what the heck, what do I have to lose other than $38. Spending the winter in Las Vegas, you can spend that in a casino in a blink of an eye. And if it performs in my CR-v, I'll stick one in my motorhome.

I cannot believe the difference in the CR-v!! On grades where the transmission would have to shift down, the engine now pulls the grade with nominal throttle pressure. No need to shift down. I now have NO PROBLEM keeping up with traffic with the same throttle pressure as before. It's throttle response may not be on a par with the 2002 CR-v we test drove before buying the '99, but it's darn close. (The 2002's have a larger engine and about 30 bhp more). I have not noticed any increase in fuel mileage in the two weeks the filter has been on. Maybe it will come later. Bottom line?.........I'M HAPPY!

Oh......it takes all of 60 seconds to change the filter on a CR-v. Quit thinking about a K&N and get one!
Ron Wheeler, Las Vegas, Nevada
Hey guys I just installed my K&N on my 2013 Honda Civic Si. It's just so freaking crazy the sound and the kick with the Vtec. It's just like a brand new car. The instructions were very easy to understand and easy to install. Go get a K&N now!! Thank you K&N for your amazing product.
Francis Henry, Québec, Canada
Just purchased this air intake and bolted it on to my 2013 Honda civic Si 4d.... Amazing! It took me just over an hour to install .. The instructions were very easy to follow with little or no tweaking. The second I started my car ... The tone of my motor was more aggressive and sounded great. Acceleration was much improved.. (Almost like a different car)....Great purchase for the average guy to bolt on. Amazing results.. Thanks K&N!
Kris, Kentucky