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  1. KTM Duke General Discussion
    Hello everyone! I'm thinking of buying the Coober airbox lid for my 390 Duke 2020. But I wonder if the sponge of the airbox lid that came with it is enough to filter out the dirt or dust effectively or not. Anyone has any idea about this? Thanks !
  2. Asia
    I have ordered a stock replacement K&N air filter for my 2014 Duke 390....will I have to do any tunings or have to install the powertronic ecu?? ...I've seen many other reviews and it made me even more confused..what shall I do? will it harm the engine or do any change in performance if I just...
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