Mk45 TOURING MUFFLER for M8 TOURING MODELS—Black with Black Tracer End CapMk45 Slip On Mufflers are the result of decades of riding, racing and tuning. Combining both a stainless steel perforated core baffle with RaceTEX cartridge packing, they create a deep rumble and improved horsepower and torque, all while adding a unique look with styled aluminum end caps. Fitment 2017 Up Touring Models Features And Benefits 7 horsepower gain* Includes removable dB Reducer (J2825 compliant) Stainless steel baffle with RaceTEX cartridge