Air Filters - Drop In

Drop-in air filters are the simplest way to unlock better throttle response and engine sound from your vehicle. Designed to replace the restrictive factory paper filter inside the stock airbox, these high-flow panel filters require no modifications—just swap out the old filter, and you're done.

  • Direct replacement for OEM panel filter
  • Engineered for improved airflow over paper elements without compromising filtration
  • No tuning or modifications required—fits the factory airbox securely
  • Long service life, often washable and reusable for reduced waste
  • Available for a wide range of makes and models; verify fitment for your vehicle

Whether you're commuting or pushing hard on back roads, a drop-in filter provides a noticeable improvement in intake response. Shop our selection of top-quality drop-in air filters from trusted brands.

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K&N E-0664 round replacement air filter featuring pleated oiled cotton media and black rubber sealing gaskets

$55.19

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K&N E-0663 high-flow replacement drop-in air filter with pleated red oiled cotton media

$55.19

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K&N E-0662 high-flow oiled cotton round straight replacement air filter for 2012-2015 Ford Ranger.

$67.19

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K&N E-0661 round straight air filter with red oiled cotton media and black rubber seals

$55.19

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K&N E-0660 washable oiled cotton high-flow replacement air filter for 2015-2026 Porsche Macan

$67.19

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K&N E-0659 red oiled cotton high-flow drop-in replacement air filter for BMW X5 and X6.

$126.39

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Set of two K&N E-0658 high-flow replacement air filters featuring red oiled cotton media and black flexible frames.

$335.99

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K&N E-0656 high-flow oiled cotton drop-in air filter for 2014-2022 Ram ProMaster 1500/2500/3500.

$67.19

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K&N E-0654 high-flow replacement air filter with oiled cotton media for Mercedes-Benz 2.1L diesel engines.

$83.99

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K&N E-0651 drop-in performance air filter featuring pleated red oiled cotton media for Maserati V6 engines.

$67.19

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K&N E-0650 oiled cotton high-flow drop-in replacement air filter.

$67.19

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K&N E-0649 red oiled cotton high-flow replacement air filter for Ford V8-5.2L engines.

$67.19

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K&N E-0647 high-flow oiled cotton replacement drop-in air filter for 2015-2020 Audi A4.

$83.99

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K&N E-0646 reusable red oiled cotton gauze drop-in air filter with a black rubber sealing frame.

$67.19

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K&N E-0645 high-flow washable replacement air filter with red oiled cotton media for 2015 Holden Colorado.

$83.99

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K&N E-0644 round high-flow oiled cotton replacement air filter for Ford Super Duty 6.7L diesel engines

$100.79

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K&N E-0642 high-flow drop-in replacement air filter with red oiled cotton media for Hyundai Kona N and Veloster N.

$67.19

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K&N E-0638 drop-in replacement air filter featuring pleated red oiled cotton media for Mercedes-Benz AMG models.

$67.19

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Set of two K&N E-0631 high-flow oiled cotton drop-in air filters for C8 Corvette Z06 and ZR1.

$193.59

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Pair of K&N E-0630 red oiled cotton high-flow drop-in air filters for 2024-2026 Ford Mustang 5.0L

$126.39

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K&N 33-5146 high-flow oiled cotton drop-in replacement air filter for 2.3L Ford Mustang and Explorer engines

$55.19

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K&N 33-5145 high-flow replacement air filter with red oiled cotton media for 2023-2026 Honda Hybrid vehicles.

$63.19

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K&N 33-5144 High-Flow oiled cotton replacement air filter for 4.4L BMW engines.

$117.59

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K&N 33-5143 high-flow replacement air filter with red oiled cotton media for 2023-2026 Colorado and Canyon trucks

$63.19

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K&N 33-5139 replacement air filter featuring pleated red oiled cotton media and a durable black rubber gasket frame.

$55.19

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K&N 33-5137 high-flow oiled cotton replacement air filter for Porsche 911 Turbo models.

$83.99

Low in stock
Set of two K&N 33-5135 high-flow oiled cotton replacement air filters for 2023-2025 Nissan Z.

$100.79

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K&N 33-5133 high-flow oiled cotton air filter for 2018-2025 Lexus LC500 and LS500 V8 models.

$55.19

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K&N 33-5132 replacement high-flow air filter with red oiled cotton media and black flexible frame.

$67.19

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K&N 33-5131 high-flow replacement air filter with red oiled cotton media for 2022-2026 Hyundai Elantra N

$55.19

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Can’t Find the Part You Need?

Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.

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