BMW M135i | M235i - MMR Performance Cotton Panel Air Filter

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One of the easiest and best ways to upgrade the breathing abilities of the F2x N55-powered M135i / M235i is with a replacement performance panel air filter.  Replacing the filter for the MMR Performance item will allow a small increased in performance and also means it doesnt need to be replaced at every service interval. 

Key Features:

  • Enhanced engine performance
  • Enhanced induction tone
  • Designed to be used with the OE air filter housing
  • Available in a lightly oiled, or dry filter material
  • Easily fitted and completely washable.
  • Lifetime guarantee


  • BMW M135i
  • BMW M235i 
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