It may have some affect on performance but just running 4 blocks back an forth I don't think it will have any affect (Quads out a glamis don't run silencers). When i was younger i had a vespa scooter the exahust fell off. So i picked it up and put it on the floor board turned around and went home. Nothing like exhaust right out of the cylinder. A cop went by me in the oppisite direction i just pulled over and waited for him to turn around so I could explain what happened. He was cool about it and told me there had been complants of a loud Motocyle/scooter in the area. I laughed all the way home because i knew who he was looking for my brother he also had a scooter with a race pipe and all the internal baffles cut out you could hear him from 5+ miles away. SWEET!!!!
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