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Chrome 4-1/2 in. Mk45 Slip-on Mufflers w/Black Contrast Machined Thruster End Caps - 550-0664

  • Part #:
    4409393
  • Mfg Part #:
    550-0664
  • OEM/Ref#:
1 / 1

Chrome 4-1/2 in. Mk45 Slip-on Mufflers w/Black Contrast Machined Thruster End Caps - 550-0664

  • Part #:
    4409393
  • Mfg Part #:
    550-0664
  • OEM/Ref#:
MSRP: $699.95

Price: $629.96 10% off!
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In Stock - 2 on Hand

S&S Cycle Chrome 4-1/2 in. Mk45 Slip-on Mufflers w/Black Contrast Machined Thruster End Caps - 550-0664
  • The result of decades of riding and racing, these mufflers create a deep, performance tone
  • Improved horsepower created by using both a stainless steel perforated core removable baffle with RaceTEX cartridge packing
  • Fitted with billet end caps
  • Easy installation
  • Sold in pairs
  • Made in the U.S.A.


Included Items:

(2) 4-1/2" Chrome slip-on mufflers with black end caps and removable baffles

(2) Exhaust clamps (AccuSeal)

(4) 5/16"-18 x 1/2" Hex head bolts

(4) 5/16" Split lock washers

Instructions 

Specifications
Part #: 4409393
Mfg #: 550-0664
Color - Primary Chrome
Style Straight-Cut Tip
Type Slip-On/Muffler
Units Pair
Weight 30.00 lbs
Alternate/OEM Part Number(s):
18011075
Resources & Manuals
Fitment for S&S Cycle Chrome 4-1/2 in. Mk45 Slip-on Mufflers w/Black Contrast Machined Thruster End Caps - 550-0664

Part 4409393 fits the following machines

Harley-Davidson
  • Electra Glide Police - FLHTP 2017-2018
  • Electra Glide Standard - FLHT 2019-2020
  • Electra Glide Ultra Classic - FLHTCU 2017-2019
  • Electra Glide Ultra Limited - FLHTK 2017-2020
  • Electra Glide Ultra Limited CVO/SE - FLHTKSE 2017-2020
  • Electra Glide Ultra Limited Low - FLHTKL 2017-2019
  • Road Glide - FLTRX 2017-2020
  • Road Glide CVO/SE - FLTRXSE 2018-2019
  • Road Glide Limited - FLTRK 2020
  • Road Glide Special - FLTRXS 2017-2020
  • Road Glide Ultra - FLTRU 2017-2019
  • Road King - FLHR 2017-2020
  • Road King Special - FLHRXS 2017-2020
  • Street Glide - FLHX 2017-2020
  • Street Glide CVO/SE - FLHXSE 2017-2020
  • Street Glide Special - FLHXS 2017-2020
Reviews & Questions
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Browse 2 questions Browse 2 questions and 2 answers
Will these slip-ons work with the S&S power tune head pipes? I currently have these on my 17 FLHXS, but looking to get the S&S head pipes to match.
Derek C on Sep 29, 2019
BEST ANSWER: As long as the headpipes are the same size as stock, they should work
Would I have to get my new bike remapped if I install the S&S Mk45 mufflers?
Larry N on Nov 22, 2016
BEST ANSWER: Anytime you make an exhaust adjustment there is the possibility that re-jetting or re-mapping the fuel system will be necessary. Please contact S&S for further and more accurate information on what this item requires to optimize performance upon install.

https://www.sscycle.com/contact
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