BMW Z4 18i Replacement Air Filters

Buy now from K&N's Online Store and get a 100% money back guarantee on any BMW Z4 18i air filter!

  • Designed to Increase Horsepower and Acceleration
  • High Air Flow with Excellent Filtration
  • Top Performance Accessory for BMW Z4 18i Models
  • K&N Million Mile Limited Warranty®

Order your K&N replacement air filter Factory Direct today! Help your BMW Z4 18i run better. Fast and FREE SHIPPING with any BMW Z4 18i air filter

  1. 2021 BMW Z4 18i 2.0L L4 Gas air filter
    Special Price €85.49 Regular Price €113.99
    33-3136
    K&N
  2. 2014 BMW Z4 18i 2.0L L4 Gas air filter
    Special Price €74.39 Regular Price €99.19
    33-2963
    K&N
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