K&N Round Air Filter - K&N E-2021

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  • K&N Round Air Filter - K&N E-2021

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  • Part#: E-2021
  • Original Price: $104.99
  • Our Price: $63.32
  • 10+ In Stock - Ships in 1 day
  • Shipping: Free Shipping

K&N Replacement Air Filters

K&N Replacement Air Filters are drop-in replacements that will easily fit in your vehicle’s factory airbox. Compared to stock OEM air filters, K&N air filters are designed to provide better engine performance and are longer lasting. It delivers up to 50% more air flow, resulting in more horsepower and torque, as well as better throttle response.

It uses several layers of cotton fiber filter media in combination with air filter oil to trap unwanted contaminants such as dirt and debris and keep it from getting into your engine. An epoxy coated aluminum mesh protects the filter media from damage. The frame is made out of durable urethane that should last the entire lifetime of your vehicle.

In normal driving conditions, it can last up to 50,000 miles before it needs to be cleaned. To clean and service the filter, simply spray it with K&N Power Kleen Air Filter Cleaner to loosen and dissolve all the accumulated dirt and grime. It can then be washed with water. Once it’s dry, apply K&N’s Air Filter Oil prior to installation. K&N Replacement Air Filters come pre-oiled out of the box, so you’ll only need to apply new oil after it has been washed and cleaned.

With regular maintenance and using only K&N cleaning products, your replacement filter can last up to 10 years or 1,000,000 miles.

 

Features:

  • Drop in replacement for stock paper air filters
  • Fits in factory airbox
  • Delivers up to 50% more air flow
  • Increases horsepower and torque
  • Improves throttle response
  • Offers excellent filtration
  • Easily washable and reusable
  • Made with durable materials that should last the lifetime of the vehicle
  • Lasts up to 50,000 miles before requiring cleaning
  • Backed by K&N’s 10-Year/Million Mile Limited Warranty

California Residents: Prop 65 WARNING

K&N Round Air Filter E-2021 is available for the following vehicles:

Please click on next to the vehicle for specific year information.
Year range Make Model Engine Type Liter Fuel Fuel Delivery
2008-2010 BMW 118d L4 1.6L Gas F/I
2008-2011 BMW 120d L4 2.0L Gas F/I
2008-2011 BMW 123d L4 2.0L Gas F/I
Year range Make Model Engine Type Liter Fuel Fuel Delivery Notes
2005-2005 BMW 318i L4 2.0L Gas F/I 129BHP
2005-2011 BMW 320i L4 2.0L Gas F/I
2006-2008 BMW 320si L4 2.0L Gas F/I
2006-2012 BMW 318i L4 2.0L Gas F/I
2008-2008 BMW 318i L4 1.6L Gas F/I N45N Eng
2009-2012 BMW 316i L4 1.6L Gas F/I N45N Eng
2012-2012 BMW 320i L4 2.0L Gas F/I Excl. F30/F31
If this K&N Replacement Air Filters is not exactly what you are looking for to accessorize your 2008-2011 BMW 1 Series, please don't give up just yet. Our catalog has huge selection of parts and accessories for your BMW 1 Series.

Specifications

Qty Sold: 1 Filter
Air Filter Shape: Round
Filter Material: Cotton Gauze
Filter Re-Oiling Amount: 0.79 oz (23 ml)
Flanges: None
Height: 4.5 in (114 mm)
Inner Wire: No
Inside Diameter: 3.156 in (80 mm)
Outside Diameter: 5.125 in (130 mm)
Package Contents: 1 Air Filter
Product Box Height: 7.13 in (181 mm)
Product Box Length: 7.06 in (179 mm)
Product Box Width: 7.06 in (179 mm)
Product Weight: 1.03 lb (0.47 kg)
Top Material/Finish: None
Top Style: Rubber
Weight: 1 lb (0.5 kg)