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S&S Cycle 4 1/2" MK45 Chrome Mufflers w/Contrast Cut Thruster End Cap & Stealth Air Cleaner Kit w/o Cover - MK45/STEALTH

  • Part #:
    4409887
  • Manufacturer Part #:
    MK45/STEALTH
This item is no longer available

Overview of S&S Cycle 4 1/2" MK45 Chrome Mufflers w/Contrast Cut Thruster End Cap & Stealth Air Cleaner Kit w/o Cover - MK45/STEALTH

Sturgis Special – Buy an MK45 Muffler Kit and get a Stealth Air Cleaner Kit free! Offer valid from 7/18/17 thru 8/31/17.

S&S Cycle 4-1/2" MK45 Chrome Performance Mufflers w/Contrast Cut Thruster End Caps – (550-0619, 550-0620, 550-0621, 550-0622, 550-0623, 550-0624, 550-0625, 550-0626)

  • MK45 Slip-Ons are the result of decades of riding, racing and tuning
  • RaceTEX cartridge packing, creates a deep rumble and improved horsepower and torque
  • Fitted with chrome-plated or black contrast cut billet end caps
  • Removable dB reducer - Allows you to tune for sound and performance
  • Simple to install and sold in pairs

    Included Items:
    (2) 4-1/2" Chrome slip-on mufflers with contrast cut end caps and removable baffles
    (2) Exhaust clamps 
    (4) 5/16"-18 x 1/2" Hex head bolts
    (4) 5/16" Split lock washers
    (2) Stainless Steel dB Reducers

Overview of S&S Cycle Stealth Air Cleaner Kit w/o Cover - 170-0301B

S&S® Stealth Air Cleaner Kit For Fuel Injected 2008-'16 HD® Touring Models With Throttle By Wire. Increased filter area, combined with an air horn style radiused inlet and unique S&S® stinger cone to allow smoother faster air flow for more power. Can be run without a cover or for a sleeper look, a stock 1999-later Big Twin air cleaner cover may be used.  For a little more style and a high performance look, S&S® offers a number of good looking covers. This kit does not include an air cleaner cover.  Kit includes back plate, filter element, top cover, hardware, and instructions.

49-01437 Rushmore Adapter is required for all Rushmore edition models (sold separately)

Included Items:

(1) Air cleaner assembly
(1) Threadlocker
(2) Breather bolt
(8) Washer
(3) 1/4"-20 x 13/16" Back plate bolt
(1) Back plate gasket

Specs for S&S Cycle 4 1/2" MK45 Chrome Mufflers w/Contrast Cut Thruster End Cap & Stealth Air Cleaner Kit w/o Cover - MK45/STEALTH

Color - Primary Chrome
Style Straight-Cut Tip
Type Slip-On/Muffler
Units Pair
Weight 0.00 lbs

Specs for S&S Cycle 4 1/2" MK45 Chrome Mufflers w/Contrast Cut Thruster End Cap & Stealth Air Cleaner Kit w/o Cover - MK45/STEALTH

Color - Primary Chrome
Style Straight-Cut Tip
Type Slip-On/Muffler
Units Pair
Weight 0.00 lbs

Fitment for S&S Cycle 4 1/2" MK45 Chrome Mufflers w/Contrast Cut Thruster End Cap & Stealth Air Cleaner Kit w/o Cover - MK45/STEALTH

See if this part fits your ride

Part 4409887 fits the following machines

Harley-Davidson
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  • 2008 Harley-Davidson Electra Glide Classic (EFI) - FLHTC
  • 2009 Harley-Davidson Electra Glide Standard - FLHT
  • 2008 Harley-Davidson Electra Glide Standard (EFI) - FLHT
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  • 2015 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2014 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2013 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2012 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2011 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2010 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2009 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2008 Harley-Davidson Electra Glide Ultra Classic (EFI) - FLHTCU
  • 2016 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2015 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2014 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2013 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2012 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2011 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2010 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2009 Harley-Davidson Road Glide - FLTR
  • 2008 Harley-Davidson Road Glide (EFI) - FLTR
  • 2013 Harley-Davidson Road Glide Custom - FLTRX
  • 2012 Harley-Davidson Road Glide Custom - FLTRX
  • 2011 Harley-Davidson Road Glide Custom - FLTRX
  • 2010 Harley-Davidson Road Glide Custom - FLTRX
  • 2016 Harley-Davidson Road Glide Ultra - FLTRU
  • 2013 Harley-Davidson Road Glide Ultra - FLTRU
  • 2012 Harley-Davidson Road Glide Ultra - FLTRU
  • 2011 Harley-Davidson Road Glide Ultra - FLTRU
  • 2016 Harley-Davidson Road King - FLHR
  • 2015 Harley-Davidson Road King - FLHR
  • 2014 Harley-Davidson Road King - FLHR
  • 2013 Harley-Davidson Road King - FLHR
  • 2012 Harley-Davidson Road King - FLHR
  • 2011 Harley-Davidson Road King - FLHR
  • 2010 Harley-Davidson Road King - FLHR
  • 2009 Harley-Davidson Road King - FLHR
  • 2008 Harley-Davidson Road King (EFI) - FLHR
  • 2013 Harley-Davidson Road King Classic - FLHRC
  • 2012 Harley-Davidson Road King Classic - FLHRC
  • 2011 Harley-Davidson Road King Classic - FLHRC
  • 2010 Harley-Davidson Road King Classic - FLHRC
  • 2009 Harley-Davidson Road King Classic - FLHRC
  • 2008 Harley-Davidson Road King Classic (EFI) - FLHRC
  • 2016 Harley-Davidson Street Glide - FLHX
  • 2015 Harley-Davidson Street Glide - FLHX
  • 2014 Harley-Davidson Street Glide - FLHX
  • 2013 Harley-Davidson Street Glide - FLHX
  • 2012 Harley-Davidson Street Glide - FLHX
  • 2011 Harley-Davidson Street Glide - FLHX
  • 2010 Harley-Davidson Street Glide - FLHX
  • 2009 Harley-Davidson Street Glide - FLHX
  • 2008 Harley-Davidson Street Glide (EFI) - FLHX
  • 2016 Harley-Davidson Street Glide Special - FLHXS
  • 2015 Harley-Davidson Street Glide Special - FLHXS
  • 2014 Harley-Davidson Street Glide Special - FLHXS
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Browse 1 question Browse 1 question and 1 answer
If I use these mufflers and tuner kit on my stock 2009 Ultra will I have to have it put on a dyno?. Thanks Jim C.
A shopper on Jul 18, 2017
BEST ANSWER: You don't "have to" put it on a dyno, that's your choice.

Instructions and Manuals for S&S Cycle 4 1/2" MK45 Chrome Mufflers w/Contrast Cut Thruster End Cap & Stealth Air Cleaner Kit w/o Cover - MK45/STEALTH

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