Punch Out the Stock Muffler
Been thinking about pulling the stock muffler on my DC 5.7 to see if punching a 1/2 inch hole or 2 thru it would be possible. I have done this on my last 2 Harleys stock exhaust with really good sound improvement and no performance/efficiency decline.
Has anyone done this or knows what the stock muffler looks like on the inside?
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