$90.99 USD
MSRP $140.99 35.5% Off
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K&N E-2427 Air Filter

Replacement Filters > Replacement Air Filter
  • 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®
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]

Product Specifications

Air Filter ShapeRound Straight
Base Outside Diameter5.063 in (129 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.56 oz (46 ml)
Flange Angle30 degrees
Flange Inside Diameter3.375 in (86 mm)
Flange Length4.188 in (106 mm)
Flange Outside Diameter3.375 in (86 mm)
Flange TypeAngled
Height7.875 in (200 mm)
Inner WireNo
Package Contents1 Air Filter, 1 K&N 1oz Sealing Grease
Package Quantity1
Product Box Height14.5 in (368 mm)
Product Box Length6.31 in (160 mm)
Product Box Width6.31 in (160 mm)
Product StyleUnique Air Filters
Top Material/FinishChrome
Top Outside Diameter4.5 in (114 mm)
Top StyleMetal
Weight1.7 lb (0.8 kg)

Customer Feedback

Be the first to review part E-2427
Recently installed a K&N E-2427 on Integra GS-R. I had a stage one cams (Skunk2) and 2 1/4 piping to stock muffler. Before the K&N... I was getting about 25 mpg max (all freeway). Now, I am getting a whopping 35 mpg! Timing advanced to 14 degrees. Couldn't believe it! This is not a joke.

M. A.
I purchased a K & N air filter for my 2000 Acura Integra a couple of years ago; the results I got from this filter alone were much more than I thought I would get.  My gas mileage went from 31 to 34 miles per gallon and acceleration was much improved.  Also, not that it matters, but it made my performance exhaust sound much better.  I am extremely happy with the results from this filter and have found that it is well worth the extra money. 

N. Haines
    A couple of weeks ago I bought one of your air filters for my 1995 Acura Integra GS-R. I am impressed with the performance and value of the filter! The deeper, throatier sound my car's engine now makes is great to hear, and my friends think I must have spent big bucks on a costly air intake kit! They seem shocked when I tell them all I did was replace the air filter!! I've noticed gains in gas mileage too and my car's performance has reached a new level of potential! I normally wouldn't have taken the time to write a company about one of their products, this is one product that deserves some recognition!

Chris Lusebrink
Leavenworth, Kansas