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      11-17-2012, 10:34 AM   #19
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Originally Posted by anacondatp View Post
thia has been discussed bf as well. acm is kinda straight pipe but not really. bc they still take advantage if the Hemholt chamber in the stock muffler which some people believe helps eliminate the drone. again, its theory and im speaking from reading. no real experience
Yes but the chambers are now really useless as they aren't long enough for the added volume
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