S&S Cycle
- Free NZ shipping over $149 (excl. rural & bulky items)
- Ships in 1–2 business days from our NZ warehouse
- 90-day returns
- NZ price match
Shipping details · Returns policy
Product Description
Mk45 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 packing•High temp ceramic black finish•Made in the USA!
*Tested with Stealth Air Cleaner.
Kit Not recommended for Tri-Glide or other three wheel models due to ground clearance.
Not recommended for Tri-Glide or other three wheel models due to ground clearance.
- Brand: S&S Cycle
- Part number: 550-0670
These are performance and custom aftermarket products sourced to match or exceed original specifications as an alternative to the OEM part. Any Harley-Davidson part numbers referenced are for identification purposes only.

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