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-3212 round high-flow air filter featuring red pleated oiled cotton media and black rubber mounting seals.

$57.99

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K&N E-3200 round high-flow air filter featuring red pleated oiled cotton media and a 5.375 inch outer diameter.

$52.99

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K&N E-3120 round custom air filter with red pleated oiled cotton media and black rubber end caps.

$68.99

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K&N E-3033 oval cotton gauze replacement air filter with red pleated media and 7-inch height.

$157.99

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Round white unoiled K&N racing air filter with 2-layer cotton gauze media and wire mesh reinforcement

$83.99

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K&N E-2999 washable high-flow round straight air filter for Audi A8 Quattro

$83.99

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K&N E-2997 high-flow replacement air filter with pleated red oiled cotton media and black flexible gasket.

$67.19

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K&N E-2996 high-flow replacement oiled cotton air filter for 2007-2011 Audi S6

$83.99

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K&N E-2994 high-flow oiled cotton drop-in air filter for 2010-2013 BMW M3 4.0L V8

$157.99

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K&N E-2993 high-flow replacement air filter with red pleated oiled cotton media and black rubber sealing gaskets.

$83.99

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K&N E-2992 high-flow oiled cotton replacement air filter for 2005-2006 Mercedes-Benz E320 CDI.

$104.99

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K&N E-2990 washable replacement air filter with red oiled cotton media for 1981-1983 Nissan 280ZX

$83.99

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K&N E-2987 high-flow washable oiled cotton replacement air filter

$68.99

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K&N E-2872 round replacement air filter featuring red pleated oiled cotton media and durable black rubber seals.

$83.99

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K&N E-2865 high-flow replacement air filter with layered oiled cotton media for select Ford and Mercedes-Benz models.

$68.99

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K&N E-2657 replacement high-flow air filter with pleated oiled cotton media for BMW turbo-diesel engines.

$83.99

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K&N E-2605-1 high-flow washable oiled cotton air filter for factory air box installation.

$83.99

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K&N E-2553 high-flow oiled cotton replacement air filter for Suzuki Samurai factory air box.

$68.99

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K&N E-2444 replacement high-flow air filter with red oiled cotton media and durable rubber seals

$104.99

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K&N E-2443 washable high-flow replacement air filter with red oiled cotton media in a black frame

$83.99

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K&N E-2440 high-flow oiled cotton drop-in air filter for 1969-1992 Toyota Land Cruiser

$83.99

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K&N E-2435 cylindrical high-flow air filter featuring red oiled cotton media and black molded rubber seals

$83.99

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K&N E-2429 rectangular drop-in air filter featuring red pleated oiled cotton media and a black flexible frame.

$83.99

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K&N E-2400 round replacement air filter with red oiled cotton media and protective mesh for 1970-1974 MG MGB.

$57.99

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K&N E-2296 high-flow washable drop-in replacement air filter for 2005 Toyota Vigo

$83.99

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K&N E-2295 washable high-flow air filter featuring red oiled cotton media for Porsche Boxster and Cayman.

$83.99

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K&N E-2022 cylindrical high-flow air filter featuring red pleated oiled cotton media and black rubber seals.

$83.99

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K&N E-2011 replacement high-flow air filter featuring pleated red oiled cotton gauze media and a black rubber frame.

$68.99

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K&N E-1999 high-flow replacement air filter with pleated red oiled cotton media for 2009-2012 Porsche 911.

$209.99

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K&N E-1998 high-flow replacement air filter with pleated oiled cotton media and durable rubber framing.

$68.99

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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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