S&S Cycle 4.5" MK45 Slip-On Mufflers For Harley-Davidson Part Number:1010-8363 (MFG #: 550-0625) see fitment chart for applications

see fitment chart for applications

Reinforced lower leg

Pre-Stretched inner wire is flared out before the terminal end is cast for superior pull out resistance

Brake Lights & Turn Signals

S&S Cycle 4.5" MK45 Slip-On Mufflers For Harley-Davidson Part Number:1010-8363 (MFG #: 550-0625) see fitment chart for applicationsFeatures Mk45 4. 5" Touring Mufflers are the result of decades of riding, racing and tuning Combines both a stainless steel baffle and RaceTEX cartridge packing Create a deep rumble and improved horsepower and torque, all while adding a unique look with styled aluminum endcaps Includes removable dB reducer Made in USA! Sold in pairs Not for Trike applications NOTE: Qualified Manufacturer Declared Replacement Part on all 17 20 model year M Eight