BMW Air Filters for BMW 3 Series E30 (1984-1991)

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Lackluster performance from a high-performance machine can only mean one thing: poor maintenance. Keep your car at peak operating levels by doing simple things like replacing your air filter. Stock BMW air filters are made from pleated paper. In some cases you can simply remove it from the car and give it a good shake or brush with a very soft bristle brush. But for heavily soiled filters a replacement is the only option. A lot of fresh air is crucial for your BMW's engine to make power. Don't let the filter be the weak link. We only offer OEM quality brands for air filters. Check the Intake category for Performance Air Intakes & Drop In Performance Air Filters
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K&N - Corporate Logo
T#:4005
Part#: 33-2005
In Stock
$ 104.99 USD
Free Shipping
$ 104.99 USD
Free Shipping

K&N's drop-in air intake filter is constructed from cotton gauze material between aluminum mesh - this makes for a long lasting, high performance drop-in intake filter. These are very easy to remove and maintain. Turner Motorsport recommends this as one of the first maintenance/modifications you make to your vehicle after you purchase! 

K&N's drop in air filters allow increased airflow - dirt and particles stick to the oil on these filters, making them more effective than traditional paper filters in terms of protection. Additionally, K&N believes their filters are more efficient than paper filers - this means more oxygen getting into the engine, allowing vaporized fuel to burn more efficiently and increasing horsepower and fuel economy. The best of both worlds!

  • Covered by the K&N Million Mile Limited Warranty
  • Washable and reusable
  • Emissions legal in all 50 states
  • Will not void vehicle warranty
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K&N - Corporate Logo
T#:4006
Part#: 33-2059
Ships in 4 Business Days
$ 57.99 USD
Free Shipping
$ 57.99 USD
Free Shipping

K&N's drop-in air intake filter is constructed from cotton gauze material between aluminum mesh - this makes for a long lasting, high performance drop-in intake filter. These are very easy to remove and maintain. Turner Motorsport recommends this as one of the first maintenance/modifications you make to your vehicle after you purchase! 

K&N's drop in air filters allow increased airflow - dirt and particles stick to the oil on these filters, making them more effective than traditional paper filters in terms of protection. Additionally, K&N believes their filters are more efficient than paper filers - this means more oxygen getting into the engine, allowing vaporized fuel to burn more efficiently and increasing horsepower and fuel economy. The best of both worlds!

750iL/850i requires 2 filters

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Mann - Corporate Logo
T#:3998
Part#: 13721715881
In Stock
$ 18.99

This product was last offered at the strikethrough price on
03-24-2026

$ 16.99 USD
Free Shipping on orders $49 and up
$ 16.99 USD
Free Shipping on orders $49 and up
Replacement air filter

This item fits the following BMWs:
1986-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix
1992-3/1994 E36 BMW 318i 318is 318ti 318ic
1986-1988 E28 BMW 528e
1989-1990 E34 BMW 525i
1988-1994 E32 BMW 750il - 2 required
1990-1999 E31 BMW 850i 850ci - 2 required
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