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velocity stack

  1. Tech/Setups for Supermoto
    Hey guys - looking to mod my air box - I'm going to use the K&N RX-5179 filter (same as EVO2 kit I'm told). I do not want to lose any low end/mid range power - Mid range will be most important to me. Stock bike - But keep in mind I will have Canisterectomy/SAS valve removed, and adding a FMF...