Mechanical silencer that comes with an internal perf-core surrounded by packing The T-5 Stainless Slip-On Silencer is designed for a rider looking for an inexpensive, easy-to-install, lightweight performance silencer that can bolt right onto their stock head pipe Aluminum muffler brackets Aluminum canister Stainless steel mid pipe and end-cap TIG welded Asymmetric muffler design Removable USFS approved spark arrestor and optional insert for closed course racing. MUFFLER T5 SS MECH KLR650