FMF Racing 4-Stroke Muffler Packing

FMF Racing is well-known for making high-performance exhaust systems for off-road motorcycles. This muffler packing is designed to go inside their 4-stroke mufflers, helping to keep them running right and sounding good. It's made from fine, blended fiberglass fibers that FMF has specified to handle high heat, reduce noise, and last a good long time.

When you repack your muffler, you're not just quieting things down; you're also helping the exhaust system perform at its best. This packing material is key to that. The interwoven fiberglass construction is built to resist the intense heat found in a 4-stroke exhaust, which helps it maintain its sound-dampening properties and overall effectiveness over many rides. It's a straightforward way to refresh your muffler's internals and keep your bike running smoothly.