Author Topic: 6400/7300/7900 muffler on a 7910 cylinder  (Read 430 times)

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Offline mdavlee .

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Re: 6400/7300/7900 muffler on a 7910 cylinder
« on: January 03, 2016, 06:32:41 am »
I've done it on a few that were converted. Open the factory muffler up some to port match better. Don't go crazy or all the thick part of the muffler will be gone.

 

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