Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Drilling Mufflers....ha,ha,ha
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Old 10-11-2012, 08:02 AM
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The harley service reps, sales guys used to go to the shows , and say here is the latest new muffler, It meets the 85 dcb,fed regulations, when we were developing it we first used 5/8 holes and it had 95 dcb and a good sound, but we had to use .0(what ever) carb jets, when we had 11/16 holes it was 100 dcb, ,and >0 zz jet s, A way to get around the feds.
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