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Has anyone tried removing the spark arrestor out of the stock exhaust for competition use? Any idea how much extra power could be gained by doing that and removing the airlid. What kind of re-jetting would be needed?
 

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i'm sure it would add some power but it's stupid loud. i tried it for fun and it was the loudest thing i ever heard. just spend the $30 on a hrc spark arrestor, that's what i would do.
 
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