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This is the collector section of the stock exhaust
header form the typical 2-valve Ducati.
It's easy to see that the diamond shaped area causes a lot of
restriction. |
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This one has had the restrictive section cut out and pieces
of stainless steel welded on the top and bottom of the header
in it's place. A piece of square tubing is added for a deflector. |
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This drawing (not drawn to scale) shows the two
stainless plates and the position of the deflector. |
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