Sit down with a coffee and browse through with a good explanation of tuning, length , diameter, back pressure and how pulse, heat and sonic wave all factor on scavenge and overall tuning of you exhaust.
![Cool 8)](./images/smilies/icon_cool.gif)
![Cool 8)](./images/smilies/icon_cool.gif)
![Cool 8)](./images/smilies/icon_cool.gif)
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