K&N Performance Drop-In Air Filter - E90/E92 325/328/330

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


Fits all 2006 and newer 325i, 325xi, 328i, 328xi, 330i, and 330xi sedan, coupe, and convertibles (E90, E91, E92, E93 chassis).

K&N
T#: 1337 | Part#: 33-2332
59.99 $59.99
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K&N Performance Drop-In Air Filter - E90/E92 325/328/330
$59.99