Mk45 Slip-On Mufflers are the result of decades of riding, racing and tuning. Combining both a stainless steel perforated core baffle with Race-TEX 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 M8 touring models
Features and Benefits
- 4.5" design — with stainless steel perforated baffle and Race-TEX cartridge packing
- Show quality chrome muffler body finish
- Tuxedo Black Thruster end cap
- Produces a deep bass rumble throughout the RPM range
- Removable dB reducer
- Made in USA!
NOTE: Not recommended for Tri Glide® or other three wheel models including conversions due to ground clearance.
DISCLAIMER:
**Qualified manufacturer declared U.S. 50-State legal emissions replacement part on all MY 2017-2021 FL Touring models.
WARNING:
This product can expose you to chemicals, including chromium, which is known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
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Great quality, great sound
I purchased a 2024 Road Glide in August (my 9th Harley Davidson in 46 years span) and was originally going to purchase another leading manufacturer's 4 1/2" slip-ons until I heard the S & S Mk45's. In a side by side comparison, I preferred the S & S to everything I listened to on the same motor platform, with quality matching or exceeding other manufacturers. I wanted the Cutlass exhaust end caps, but had to settle on the thruster end caps (Cutlass were back-ordered). I will purchase the Cutlass end caps in the future. This is the most-satisfied I have ever been with slip ons.
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MK45 on my 2017
Picked up the MK45 with Thruster end caps for my 2017 SG during '17 Daytona Bike week. Good quality. Love the sound. They really come around and sound even better after you get some miles on them.
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Rumbling with S&S
I was Looking for a good Alternative to Exhaust something not like all the HD slipons , I'm very pleased with the S&S , Great Rumble & a noticeable pickup & Tourqe increase , & They Look Top Shelf, I'm very Pleased with this Pipes
