Reduces sound levels, eliminates annoying raspy sound. Prevents your exhaust from getting too hot which will damage your exhaust. Improves life and throttle response. Restores peak power. Not powder, not decay, rust, or sustain mold or vermin. The packing Is comprised of high-temp fiberglass for an economical replacement. Fits most repackable applications. Product description Fiberglass matting for use in baffling mufflers and exhaust systems to assist the insulation of sound and heat. Specifically made for motorcycles with loud exhaust systems. Improve the performance of new baffles or rewrap existing baffles/tubes where matting has aged and burned out. Proper maintenance can play a critical role in the overall performance of your machine. Over time, packing slowly deteriorates which results in poor performance and higher noise levels than the was designed to produce. We suggest repacking your every 20 – 30 hours, depending on the