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62 Posts
im lookin at a yoshimura muffler and a K&N air filter.....stage one jet kits are for bikes with exhaust...now am i going to run lean if i slap on the muff and filter?..without the jet kits...i ride the 2006 ZZR600 (four carburators) ...i want more power:crazyloco but not at a blown motor expense of course.:banghead .any info helps thanks guys!! ...