S&S Cycle
S&S Cycle Mk45 4.5" Slip-On Mufflers
Item: #618088 | Part Number: Not Selected$916.16 - $1,147.99
Description
Features: Black Mufflers / Black Thruster End Caps 7 horsepower (Tested with S&S Power Tune Dual Header and Stealth Air Cleaner Kit) Includes removable dB killer to tune sound and back pressure Stainless steel baffle with RaceTEX cartridge packing
S&S Cycle Mk45 4.5" Slip-On Mufflers Item # 618088
Description
Features:
- Black Mufflers / Black Thruster End Caps
- 7 horsepower (Tested with S&S Power Tune Dual Header and Stealth Air Cleaner Kit)
- Includes removable dB killer to tune sound and back pressure
- Stainless steel baffle with RaceTEX cartridge packing
Part Numbers for S&S Cycle Mk45 4.5" Slip-On Mufflers
Fitment for Parts S&S Cycle Mk45 4.5" Slip-On Mufflers
This part fits the following vehicles:
Videos
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Reviews
Rated 5 out of
5
by
War wagon from
Awesome sound
These mufflers are great. They sound awesome with and without the db reducer. Well worth the money. The chrome is bang on.
Date published: 2021-11-27
Rated 5 out of
5
by
Roadie from
Great sound improvement
Bought these to replace the Screamin' Eagle Cannons on my 2013 FLHTK. Running a full stage 2, 255 SE cams, decated manifolds, and SE intake. These pipes came with the baffles already removed and packaged separately. Pipes have a great deep tone and are not obnoxiously loud without the baffles.
Date published: 2021-08-19
Rated 5 out of
5
by
Loonbell from
Service super
Toutes a été rondement malgré le temps de traitement. J’ai été dans une période achalandée.
Date published: 2021-05-21
Rated 5 out of
5
by
Dewy from
Great sound and look good!
I bought these to get a better sound out of a new stock Harley, M8. The sound is much better. Even with the baffles out, they are not very loud. Louder than stock by quite a bit, but no where near obnoxious. I am very happy with the sound, volume and look.
Date published: 2019-08-28
Rated 5 out of
5
by
Vandoos from
S&S MK45 de 4.5"
Exaust de très bonne qualité et le son est vraiment bien! Et que dire du service de Fortnine et livraison rapide.
Date published: 2025-06-09
Questions
On S&S website it lists part number for chrome with chrome tracer end cap as 550-0669 but on this site it lists it as 550-0668 but pic shows black tracer end caps. Am I correct in thinking this site description is incorrect but pic is not ?
Can you still hear the stock stereo over the pipes?
yes, only gets louder when open throttle up. at cruise mellow. Found a stumble in throttle response with db reducers removed. but smooth with them in. Have stage 1 screaming eagle air filter and tune. Side note: found wind noise (not exhaust) at 110 kph made stereo hard to hear with any clarity so upgraded to stage 1 boom audio, now hear stereo with clarity at highway speeds. Love MK45 look and sound.
Date published: 2024-08-17