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E-3954
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K&N E-3954 Air Filter

Replacement Filters > SPECIAL ORDER Rectangular Fltr
  • 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.

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Product Specifications

Filter MaterialCotton Gauze
Height4.125 in (105 mm)
Inside Length5.75 in (146 mm)
Inside Width3.5 in (89 mm)
Outside Length6.75 in (171 mm)
Outside Width4.5 in (114 mm)
Air Filter ShapeRectangular
FlangesNone
Package Contents1 Air Filter
Package Quantity1
Warranty1,000,000 Miles/10 Year
WashableYes
Product StyleRectangular Air Filter
Top StyleOpen
Top MaterialNone
Weight0.7 lb (0.3 kg)
Filter Re-Oiling Amount0.74 oz (22 ml)
Product Box Height9.06 in (230 mm)
Product Box Length5.56 in (141 mm)
Product Box Width4.56 in (116 mm)
Inner WireNo
WARNING: Cancer and reproductive harm--www.P65warnings.ca.gov

K&N E-3954 Air Filter Product Reviews