FMF’s Power Core 2.1 Silencer is a refinement of their well-known Power Core 2. With the 2.1 you’ll get optimized power that’s well suited to any terrain along with a deeper exhaust note that’s similar to a works exhaust.
An aluminum alloy canister body keeps the weight down and the space inside allows for a generous amount of packing material, so the noise output is kept down as well. If you notice it getting louder, use the removable fasteners and you’ll be able to open up the can for quick maintenance.