Not really. That part you remove, from this bike , doesnt do much except act like a silencer. Most of the work has been done by the time they come into play. If you look at dyno tests with just silencers, pr slip ons, the power figures are usually very similar to stock.
On a two stroke, the silencers were a bigger deal. You could use rhem to move the powerband around, some. Not so much with a 4 stroke.
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