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K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. Our stock replacement air filters for street vehicles are covered by K&N's Million-Mile Limited Warranty.

  • K&N E-3720 High Performance Custom Air Filter
  • Can be cleaned and used again
  • High air flow with exceptional filtration
Dimensions14.1 x 14.1 x 4.4 inches

K&N Custom Air Filter # E-3720


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