stock pipe, no power

1 reply to this topic
  • hane9272

Posted March 14, 2005 - 06:49 AM


I've recently replaced my fmf power core4 with the stock exhaust thinking it would be a little quiter, I was surprised to hear there was little difference in noise, it seemed to ping more like a two stroke rather then deep four stroke. But the power difference was amazing, it felt as if I was on a 250, not a 400. The reason I did this was I think i'm to loud with the fmf to ride on natioinal forest land (96 db?) can anyone tell me what this bikes(wr400) noise level is with stock and fmf power core4 exhaust is? Thank you

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  • ncmountainman

Posted March 14, 2005 - 07:28 AM


if you get the quiet core insert for the powercore 4 ,it will bring it down to 98 dband not lose as much power :)


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