The GGB Quiet can is designed for riders wanting to enhance the stock sound and save weight at the same time. At idle the Quiet Can delivers a deeper slightly louder exhaust note, transitioning to close to stock sound levels through the mid range and top end to keep the peace. Most Quiet can mufflers weigh between 9-10.5 lbs and will easily pass J2567 sound regulation of 88 dB, 4 meters away.