K&N RP-4970 | Honda Civic Air Filter

Part Number
Universal Air Filter-Carbon Fiber Top

Fits: 01-05 Honda Civic

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The RP-4970 Universal Air Filter is constructed from an oiled cotton filter media. It comes with a carbon fiber top for strength and durability. The carbon fiber element adds to the light-weight design and gives this filter a smooth glass like finish. The RP-4970 is a clamp-on filter that has an inside flange diameter of 4 inches and a flange length of 5/8 inches. The base is 5 3/8 inches and the filter height is 7 inches.



  • Designed To Increase Horsepower And Acceleration
  • Universal Air Filter-Carbon Fiber Top
  • K/N Composite Top Universal Air Filters-With advanced composite technology| carbon fiber provides the ultimate in strength with minimal weight. Carbon fiber provides 1/3 less weight than a conventional filter top.
  • High Air Flow With Excellent Filtration
  • Clamp-On Washable and Reusable Air Filter
  • One Year Limited Warranty
  • Malleable Flanges
  • Universal Air Filter-Carbon Fiber Top


Air Filter Large End Diameter5.375 in. (137mm)
Automotive Item GradeHigh Performance
Base Outside Diameter5.375 in. (137mm)
ColorHeather Red
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.25 oz (37 ml)
Flange Angle0 Degree
Flange Inside Diameter4.000 in. (102mm)
Flange Length0.625 in. (16mm)
Flange Offset0.000 in. (0mm)
Flange TypeCentered
Frame DesignFlexible
Inside Diameter4.000 in.
Item Height7.000 in. (178mm)
Item Weight0.900 lbs. (0.4 kg)
Machine WashableYes
Number of Flanges1
Oil IncludedFilter Is Pre-Oiled
Package Contents1 Air Filter
Package MaterialPaperboard
Package Quantity1
Package TypeBox
Prop 65 (C, R or CR)CR
Prop 65 Warning Labelhttps://www.knfilters.com/images/l/prop65.jpg
ShapeRound Tapered
TitleK&N RP-4970 Universal Air Filter - Carbon Fiber Top
Top MaterialNone
Top Outside Diameter4.000 in. (102mm)
Top StyleCarbon Fiber
WARNING CA Proposition 65Yes
WARNING CA Proposition 65 MessageWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Round Tapered| End Cap| OD-4 in./5 3/8 in.| Flange L-5/8 in.| Inside Flange 4 in.| Centered| Filter Length 7 in.



Customer Questions
Can K&N filters get wet?
No, K&N filters should not get wet.
When to clean K&N air filter?
K&N air filters should be cleaned approximately every 50,000 miles (80,000 kilometers) or as recommended by the manufacturer.
Will K&N filter increase mpg?
It is possible for a K&N air filter to slightly improve fuel efficiency (MPG) under certain conditions.
What does K&N mean?
K&N stands for the names of the two founders of the company, Ken Johnson and Norm McDonald.
Please, mind that only logged in users can submit questions

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