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Free Shipping on MOST US Orders. Including Protectorates and PO Boxes.
Free Shipping on MOST US Orders. Including Protectorates and PO Boxes.

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    K&N Universal Air Filter 4in Flange / 5-3/8in Base / 4-1/2in Top / 6in Height RU-4550

    K&N
    Only 7 left!

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $73.16
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    $65.53
    $65.53 - $65.53
    $65.53

    K&N Universal Air Filter (4in. Flange / 6in. Base OD / 4-5/8in. Top OD / 6in. Height) RE-0850

    K&N
    Only 8 left!

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $65.53
  • $0.00 - $0.00
    $73.16
    $73.16 - $73.16
    $73.16

    K&N Universal Filter Round Tapered 4in FlangeID / 6.625in Base OD / 5.25in Top OD / 9.5in Height RC-4780

    K&N
    Only 7 left!

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $73.16
    $73.16 - $73.16
    $73.16
  • $0.00 - $0.00
    $84.61
    $84.61 - $84.61
    $84.61

    K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 14inch H RE-0880

    K&N
    Only 6 left!

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $84.61
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    $84.61
  • $0.00 - $0.00
    $84.61
    $84.61 - $84.61
    $84.61

    K&N Universal Clamp-On Air Filter 4in FLG / 6-1/2in B / 4-1/2in T / 6in H RU-5060

    K&N
    Only 3 left!

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $84.61
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    $84.61
  • $0.00 - $0.00
    $84.61
    $84.61 - $84.61
    $84.61

    K&N Universal Clamp-On Air Filter 4in FLG / 6-1/2in B / 4-1/2in T / 8in H RU-1027

    K&N
    Only 10 left!

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $84.61
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    $84.61
  • $0.00 - $0.00
    $65.53
    $65.53 - $65.53
    $65.53

    K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 7 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-2590

    K&N
    10+ in stock

    K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 7 In, Flange ...

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    $65.53
  • $0.00 - $0.00
    $73.16
    $73.16 - $73.16
    $73.16

    K&N Universal Clamp-On Air Filter 4in FLG / 6-1/2in B / 4-1/2in T / 7in H RU-1032

    K&N
    10+ in stock

    Description K&N Universal Clamp-on Air Filters are manufactured for a wide variety of applications and unique filtration needs. K&am...

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    $73.16 - $73.16
    $73.16
  • $0.00 - $0.00
    $61.71
    $61.71 - $61.71
    $61.71

    K&N Universal Air Filter 4in Flange / 5-3/8 in Base / 4-1/2in Top / 5in Height RU-3600

    K&N
    10+ in stock

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $61.71
    $61.71 - $61.71
    $61.71
  • $0.00 - $0.00
    $73.16
    $73.16 - $73.16
    $73.16

    K&N Universal Rubber Filter 4inch FLG / 6inch OD-B / 4-5/8inch OD-T / 9inch H RE-0870

    K&N
    10+ in stock

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $0.00 - $0.00
    $73.16
    $73.16 - $73.16
    $73.16
  • $0.00 - $0.00
    $84.61
    $84.61 - $84.61
    $84.61

    K&N Universal Rubber Filter 4in FLG 9IN x 5-3/4IN B / 7 x 4-1/2IN T / 7-1/2IN H RE-1040

    K&N
    Only 8 left!

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $84.61
    $84.61 - $84.61
    $84.61
  • $0.00 - $0.00
    $73.16
    $73.16 - $73.16
    $73.16

    K&N Universal Clamp-On Air Filter 4in FLG / 6in B / 4in T / 7in H RU-4680

    K&N
    Only 8 left!

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $73.16
    $73.16 - $73.16
    $73.16
  • $0.00 - $0.00
    $65.53
    $65.53 - $65.53
    $65.53

    K&N 6 inch OD-Base 4 1/2 inch OD-Top 7 Inch H Round Tapered Universal Air Filter RF-1015

    K&N
    10+ in stock

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $65.53
    $65.53 - $65.53
    $65.53
  • $0.00 - $0.00
    $168.55
    $168.55 - $168.55
    $168.55

    K&N Round Tapered Universal Air Filter 4in Flange ID x 5.375 Base OD x 4in Top OD x 6.5in H RP-4980

    K&N
    Only 3 left!

    The RP-4980 Universal Air Filter is constructed from an oiled cotton filter media. It comes with a K&N embossed carbon fiber top for strength a...

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    $168.55
    $168.55 - $168.55
    $168.55
  • $0.00 - $0.00
    $168.55
    $168.55 - $168.55
    $168.55

    K&N Round Tapered Universal Air Filter 4 inch Flange 5 3/8 inch Base 4 inch Top 7 inch Height RP-4970

    K&N
    Only 3 left!

    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. Th...

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    $0.00 - $0.00
    $168.55
    $168.55 - $168.55
    $168.55
  • $0.00 - $0.00
    $46.45
    $46.45 - $46.45
    $46.45

    K&N Universal Air Filter Chrome Round Tapered Red 4in Flange ID x 1.125in Flange Length x 5.5in H RG-1001RD

    K&N
    10+ in stock

    K&N adjustable fitting Universal Air Filters are made with flange inserts which adjust the filter's flange to one of three inside flange diamet...

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    $0.00 - $0.00
    $46.45
    $46.45 - $46.45
    $46.45
  • $0.00 - $0.00
    $84.61
    $84.61 - $84.61
    $84.61

    K&N Universal Rubber Filter-Round Tapered 4in Flange ID x 8in Base OD x 6.625in Top OD x 8in H RU-5171HBK

    K&N
    Only 5 left!

    K&N Black Universal Air Filters are made from Dryflow oil-free synthetic media. These low restriction clamp-on air filters are designed and man...

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    $84.61
    $84.61 - $84.61
    $84.61
  • $0.00 - $0.00
    $54.08
    $54.08 - $54.08
    $54.08

    K&N Universal 4 Inch Filter RU-2510

    K&N
    10+ in stock

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $0.00 - $0.00
    $54.08
    $54.08 - $54.08
    $54.08
  • $0.00 - $0.00
    $92.24
    $92.24 - $92.24
    $92.24

    K&N Universal Chrome Filter 4 inch FLG / 5 3/8 inch Bottom / 4 1/2 inch Top / 8 inch Height RC-4580

    K&N
    Only 8 left!

    K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, ...

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    $0.00 - $0.00
    $92.24
    $92.24 - $92.24
    $92.24
  • $0.00 - $0.00
    $46.45
    $46.45 - $46.45
    $46.45

    K&N Universal Air Filter Chrome Round Tapered Blue 4in Flange ID x 1.125in Flange Length x 5.5in H RG-1001BL

    K&N
    10+ in stock

    K&N adjustable fitting Universal Air Filters are made with flange inserts which adjust the filter's flange to one of three inside flange diamet...

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    $0.00 - $0.00
    $46.45
    $46.45 - $46.45
    $46.45

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