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 33-2446 replacement air filter with red pleated oiled cotton media and a durable black flexible frame.

$126.39

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K&N 33-2445 replacement air filter featuring red pleated oiled cotton media and a durable black frame.

$126.39

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K&N 33-2443 washable high-flow oiled cotton drop-in replacement air filter.

$55.19

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K&N 33-2442 washable high-flow replacement air filter with red oiled cotton media and black flexible frame.

$67.19

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Two K&N red oiled cotton replacement air filters for Infiniti dual air box systems.

$67.19

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K&N 33-2439 high-flow oiled cotton replacement air filter for 2010-2017 Chevrolet Equinox and GMC Terrain

$67.19

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K&N 33-2438 high-flow oiled cotton drop-in air filter for 2010-2024 Toyota 4Runner and FJ Cruiser 4.0L engines

$55.19

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K&N 33-2437 washable high-flow oiled cotton drop-in replacement air filter for Honda CR-V

$55.19

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K&N 33-2435 high-flow washable oiled cotton replacement air filter for Toyota and Lexus models.

$55.19

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K&N 33-2434 High-Flow oiled cotton drop-in air filter for 2010-2015 Chevrolet Camaro

$83.99

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K&N 33-2431 high-flow replacement air filter with red oiled cotton media for 2010-2014 Ford Mustang.

$67.19

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K&N 33-2430 rectangular high-flow air filter with red oiled cotton media and a durable black rubber seal.

$55.19

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K&N 33-2428 replacement air filter with red pleated oiled cotton media and black rubber frame.

$55.19

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K&N 33-2426 high-flow drop-in air filter with pleated red oiled cotton media in a black frame.

$55.19

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K&N 33-2422 high-flow drop-in air filter with red oiled cotton media and a durable black rubber gasket.

$55.19

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K&N 33-2418 drop-in replacement air filter with red pleated oiled cotton media and black flexible frame.

$55.19

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K&N 33-2413 high-flow oiled cotton drop-in replacement air filter for 2009-2024 Nissan GT-R.

$126.39

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K&N 33-2412 high-flow oiled cotton air filters, set of two, for Mercedes-Benz and Maybach 5.5L V12 engines.

$126.39

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K&N 33-2411 high-flow washable replacement air filter with oiled cotton gauze media and a black rubber seal.

$55.19

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K&N 33-2409 drop-in replacement air filter featuring red pleated oiled cotton media and a durable black frame.

$55.19

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K&N 33-2408 washable oiled cotton replacement air filter for 2008-2012 GM and Hummer vehicles

$55.19

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K&N 33-2405 high-flow replacement air filter with red pleated oiled cotton media and a flexible black frame.

$55.19

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K&N 33-2403 rectangular high-flow drop-in replacement air filter with red oiled cotton media and black frame.

$55.19

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K&N 33-2402 high-flow replacement air filter featuring pleated red oiled cotton media in a black frame

$55.19

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K&N 33-2400 drop-in high-flow air filter with red oiled cotton media for 2007-2014 Volvo XC90 3.2L.

$55.19

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K&N 33-2399 drop-in replacement air filter with red pleated oiled cotton media and a black rubber frame.

$55.19

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K&N 33-2395 high-flow washable replacement air filter featuring red layered oiled cotton media and a black rubber frame.

$55.19

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K&N 33-2394 high-flow oiled cotton drop-in air filter with red pleated media and black rubber frame.

$67.19

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K&N 33-2392 high-flow oiled cotton drop-in air filter with red pleated media and black rectangular frame.

$55.19

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K&N high-flow replacement air filter with oiled cotton media and red pleats for Sprinter 3.0L vans

$67.19

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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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