Description
The S&S Cycle Mk45 4.5″ Touring Mufflers deliver a distinctive deep rumble while unlocking measurable horsepower and torque gains—decades of S&S engineering distilled into a bolt-on upgrade that transforms your M8 Touring’s exhaust note and performance. The dual-layer design combines stainless steel baffling with RaceTEX cartridge packing to manage sound without sacrificing flow, while the styled aluminum endcaps add visual presence that matches the performance underneath. A removable dB reducer lets you dial in the exact character you want, giving you flexibility between everyday riding and open-road aggression.
- Mk45 4.5″ diameter
- Stainless steel baffle
- RaceTEX cartridge packing
- Aluminum endcaps
- Removable dB reducer
- Deep rumble tone
- Improved HP and torque
- Chrome finish
- Black Tracer design
- M8 Touring fitment
- Years: 2017–2019
- Harley-Davidson OEM compatible
- Bolt-on installation
- Made in USA
- Not for Trike applications
