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vulcan 1600 mods

851 Views 0 Replies 1 Participant Last post by  sseandk04
my buddy has a 1600 mean streak and is putting on a k&n air, sidewinder pipes, and a power commander. someone has told him to also drill holes in the back of the stock breather housing to get more air. is this good or bad and if good where to drill and how large...
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