Many thanks to szentej for explaining the muffler flow -- so yes, I now finally get it.
szentej wrote:
> You probably will not gain any performance on making
> mods to the muffler. Only increased sound.
I'm not sure if you have seen this a dyno chart for a hacked muffler. I'm just curious what they exactly did to it, since it's quite an improvement, especially the torque.
-- peer
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