BMW R45N Replacement Air Filters

Buy now from K&N's Online Store and get a 100% money back guarantee on any BMW R45N air filter!

  • Designed to Increase Horsepower and Acceleration
  • High Air Flow with Excellent Filtration
  • Top Performance Accessory for BMW R45N Models
  • K&N Million Mile Limited Warranty®

Order your K&N replacement air filter Factory Direct today! Help your BMW R45N run better. Fast and FREE SHIPPING with any BMW R45N air filter

  1. 1985 BMW R45N 450 air filter
    Regular Price 106,69 € Special Price 85,39 €
    BM-0300
    K&N
  2. 1984 BMW R45N 450 air filter
    Regular Price 106,69 € Special Price 85,39 €
    BM-0300
    K&N
  3. 1983 BMW R45N 450 air filter
    Regular Price 106,69 € Special Price 85,39 €
    BM-0300
    K&N
  4. 1982 BMW R45N 450 air filter
    Regular Price 106,69 € Special Price 85,39 €
    BM-0300
    K&N
  5. 1981 BMW R45N 450 air filter
    Regular Price 106,69 € Special Price 85,39 €
    BM-0300
    K&N
  6. 1980 BMW R45N 450 air filter
    Regular Price 106,69 € Special Price 85,39 €
    BM-0300
    K&N
  7. 1979 BMW R45N 450 air filter
    Regular Price 106,69 € Special Price 85,39 €
    BM-0300
    K&N
  8. 1978 BMW R45N 450 air filter
    Regular Price 106,69 € Special Price 85,39 €
    BM-0300
    K&N
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