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E-9172
$39.99 USD
MSRP $62.09 35.6% Off
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K&N E-9172 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 ShapeOval
Filter MaterialCotton Gauze
Filter Re-Oiling Amount0.5 oz (15 ml)
FlangesNone
Height1.5 in (38 mm)
Inner WireNo
Inside Length9.5 in (241 mm)
Inside Width5.438 in (138 mm)
Length11.375 in (289 mm)
Outside Length11.406 in (290 mm)
Outside Width7.188 in (183 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height13.56 in (345 mm)
Product Box Length7.72 in (196 mm)
Product Box Width1.75 in (44 mm)
Product StyleOval Air Filter
Top Material/FinishNone
Top StyleOpen
Weight1.4 lb (0.7 kg)
Width7.313 in (186 mm)

Customer Feedback

I purchased the 57i MPI Induction Kit for my 1998 Rover Mini. The sound is great and definitely sets my little Mini apart from the rest! With already 45mpg, I didn't buy this kit for the gas mileage, I knew the great products that K&N makes. Definitely more power on the Autobahn, barely getting to 140kph (84mph) before, I can now go 160kph (96mph) easy! Love the product! Thank you!

P.S. I also have pictures of the installed filter and hoses if interested. Thanks again, Mike Watson

Mike Watson
Ramstein AB, Germany
The air filter I bought from the K & N range made an unbelievable difference to my Land Rover Discovery in noticeable performance. (Hard to judge any fuel saving as the vehicle is always towing other vehicles out of trouble.) Buying the filter was very easy, no sucking air through the teeth or grunting, just a person who understood the product and easily identified the filter I needed.

Paul Start
Essex, United Kingdom
I have a Land Rover discovery 2004 and have always suffered with it hanging back until the rev counter reached the 1500 mark. I was advised to install a K&N air filter, and what a difference. The whole performance across the range showing improvement.

Paul Start
Saffron, Walden