FMF Racing Muffler Packing for 4-Strokes 10590* | eBay
Amazon.com: THERMAL ZERO MPK1 Ceramic Muffler Packing Material kit for 2-Stroke 4-stroke ATV Motorcycle Dirt Bike Exhaust Silencer Spark Arrestor Muffler Baffle Packing Repack Universal Wrap - Made in USA : Automotive