K&N BMW E82 E84 E88 E90 E92 57i Air Intake System (Inc. 118d, 318d, 320d & X1 23ix)

K&N BMW E82 E84 E88 E90 E92 57i Air Intake System (Inc. 118d, 318d, 320d & X1 23ix)

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K&N 57i Series induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range. The extra surface area of these open-air air filters provides even more airflow at lower restriction than a K&N O/E replacement filter which is limited to the size of the factory air box. The larger air filter also captures and holds more dirt increasing its service life before a cleaning is required (up to 100,000 miles). The filter is either directly attached to the engine carburetor or throttle body or indirectly through a tube assembly running from the filter to the engine. All adapters are made from high quality materials such as steel, aluminum, silicon or reinforced nylon to ensure long life. 57i Series Intakes are not legal for use in California and other US States adopting California emission standards.


  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Replaces entire factory air intake system
  • Not legal for highway use in states adopting California emission regulations
  • Washable and reusable lifetime air filter
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • Easy to install, usually in 90 minutes or less
  • K&N Million Mile Limited Warranty®



  • Replacement Filter RC-9160
  • Air Filter Color Red
  • Air Filter Material Cotton Gauze
  • Air Filter Outlet Shape Round
  • Clamps Included 1
  • Clamp Material Stainless Steel
  • Clamp Style Regular
  • Couplers Included None
  • Type Gen I
  • Product Style 57i Series International Kits
  • Air Filter Height 4.375 in (111 mm)
  • Intake Pipe Color / Finish Black
  • Intake Pipe Material Flex Hose
  • Street Legal In All US States No
  • TUV Approved (Europe) No
  • Weight 2 lb (0.9 kg)
  • Air Filter Large End Diameter 4.938 in (125 mm)
  • Product Box Height 9 in (229 mm)
  • Product Box Length 9 in (229 mm)
  • Product Box Width 9 in (229 mm)
  • California Restricted Not legal for sale or use in California
  • Mounting Hardware Included Yes
  • Warranty 1,000,000 Miles/10 Year


1x K&N Air Intake System



  • E81    (2007 — 2011)
    • 116d, 118d, 120d & 123d
  • E82    (2007 — 2012)
    • 118d, 120d & 123d
  • E87 LCI    (2007 — 2012)
    • 116d, 118d, 120d & 123d
  • E88    (2007 — 2012)
    • 118d, 120d & 123d
  • E90 LCI   (2007 — 2012)
    • 318d, 318dx & 320d
  • E91 Touring LCI   (2007 — 2012)
    • 318d, 318dx, 320d & 320d ed
  • E92 Coupe LCI   (2008 — 2012)
    • 320d
  • E93  LCI   (2008 — 2012)
    • 320d
    • BMW E84 X1   (2008-2012)
      • X1 18dx, X1 20d, X1 20d ed, X1 20dx & X1 23dx


    To ensure the part(s) you have ordered fits your vehicle, we run a compatibility check prior to dispatch. We can do this either using your registration number(UK) or the last 7 digits of your VIN. Simply enter your car details prior to checkout.




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