NEW Silencer made for SLED-X this model fits 2008 to 2016 Ski Doo XP XS XM TS 500 600 800 HO E-tec SDI this silencer is 10 lbs lighter and is Flow tested and dynoed the same as factory specs so you are losing the weight and getting a awesome deep tone down low with a Braaaapp at wide open throttle. Silencer has bung for EGT sensor