Yeah the long segment of pipe between the the stinger and silencer acts like a extention to the stinger, thats why pipes that are built to be used without a silencer ( road bikes, drag pipes ect. ) have a longer stinger where as a in frame pipe that uses a silencer will have a shorter stinger becuase the silencer acts as one. A longer silencer will aid top end power while a shorty will aid in lowend power but thats really it.