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K&N Custom Air Filter 14'' Outside Diameter, 12 1/4'' Inside Diameter, 3 1/2'' Height


  • Increases Horsepower
  • Increases Filtration
  • Washable and Reuseable Filter
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Pricing: $87.99


This K&N racing air filter is made with 2 layers of cotton and does not come oiled. It was designed to provide even lower air restriction than our replacement air filters for street vehicles. K&N racing air filters are washable and reusable and come with a one year limited warranty.

Application List



Height: 3.5 in (89 mm)

Inside Diameter: 12.5 in (318 mm)

Outside Diameter: 14 in (356 mm)


  • E-3728R
  • E-3728R
  • K&N
  • New

Shipping Information

  • Item Requires Shipping
  • 2.1 lbs.
  • W4.4000” x H14.3000” x L14.1000”

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