Screamin’ Eagle Street Cannon Performance Slip-On Mufflers

    Part Number 64900552A


    Finish / Color: Chrome




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    Dialed in to enhance the performance of the Milwaukee-Eight® engine, these slip-on mufflers feature a large inlet for improved airflow. When teamed with a free-flowing air cleaner, these Street Cannon mufflers deliver horsepower and torque gains you can feel.

    • Large 4.5” diameter mufflers are tuned to provide a rich exhaust note, a deep bass rumble, and great throaty sound when you roll on the throttle
    • To strike a balance with your neighbors, the large internal volume and strategically designed baffles help maintain the peace at partial throttle
    • Large diameter body adds a muscular look to your ride, and the newly designed mounts keep the mufflers tucked in close to the bags for a clean profile
    • Features a die-cast Screamin’ Eagle® medallion on their flanks
    • Can be fitted with a wide variety of styled muffler end caps to provide the perfect finishing touch


    • Material Content

    • Material Diameter

      4.50 Inch
    • Warranty

      1 year limited warranty – Go to for full details
    • Requires ECM Calibration

    • Certifications

      50-State U.S. EPA compliant
    • Sold in Unit

    • In The Box

      Pair of mufflers
    • Sold Separately

      Muffler Clamps 65900012 and 65900015, 2 end caps
    • Upgrade Stage Level

      Stage I


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    Fits ’17-later Touring models. Does not fit Trike models. Installation requires separate purchase of Muffler Clamps P/N 65900012 and 65900015. Requires separate purchase of end caps. All models require ECM calibration with Screamin’ Eagle® Pro Street Tuner for proper installation. 50-State U.S. EPA compliant.

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    More Info

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    • These Screamin' Eagle® products are 50-State U.S. EPA compliant for sale and use on all applicable vehicles, including those that are pollution controlled. See Genuine Motor Parts and Accessories or Screamin' Eagle Accessories catalog for fitment information. Screamin' Eagle Performance products are intended for the experienced rider only.


    Street Cannon Performance Slip-On Mufflers is rated 4.9 out of 5 by 17.
    Rated 5 out of 5 by from SE slip on’s for stage 1 Excellent chrome 15 minutes each side. 5 to get stock off 5 to put new on and 5to admire. Quiet when you want but bark when you need them too
    Date published: 2018-02-21
    Rated 5 out of 5 by from Great looks and sound Had stage one kit installed before I drove bike off showroom. The sound is just right. Will let you know when you got the hammer down. Quiet enough when burning up those high mileage tours. I had tips installed slash down. I didn't like seeing up the pipe or having rainwater travel up the pipes. Main problem I have now is what to do with stock mufflers.
    Date published: 2018-01-09
    Rated 5 out of 5 by from Much better sound than stock went to test ride a new 2018 Road Glide Ultra, and the new 8 engine sound left me a touch disappointed. I heard these on another bike, and I really like them. They aren't obnoxious at idle, but give a better rumble when accelerating, and done back down when cruising.
    Date published: 2017-12-30
    Rated 5 out of 5 by from We enjoy our Street Cannons Dealer installed on our new Road Glide Ultra. My Wife and I both enjoy the sound these slip-ons provide...subtle when leaving the neighborhood at five in the morning, rambunctious when accelerating, and mellow at hi-way speeds.
    Date published: 2017-12-19
    • y_2018, m_2, d_26, h_20
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    • clientName_harleydavidson

    Q & A

    slipons for stage 4 117 2017 cvo limited

    Asked by: miltonb

    Are baffles for this slip on available?

    Asked by: jpeak

    Do I or don't I need a tuner if I install the street cannons on my brand new 2017 street glide...I'm getting conflicting information

    Asked by: Robert62
    Yes you do.
    Answered by: GFVIII
    Date published: 2017-12-22

    Street tuner calibrations

    Hi, I'm still interested in getting my question answered from an actual HD Tech since my dealership left me confused. Pilgrim's answer is not what I'm looking for, I already knew everything stated there, nor do I want the K&N stage 1 filter kit. Don't care for the maintenance of them or the sucking air intake noise they produce. I prefer the SE synthetic media filters but apparently not being provided anymore for the M8's. All I wanted was slip-ons with the calibration for those that HD leads people to believe is available but being told there isn't one. Specifically I need to know why Harley describes the Street Canon mufflers as needing an ECM recalibration when installing mufflers only, yet apparently doesn't provide a calibration in the street tuner for that, only one for Stage 1..this is what my dealer told me. My concern is doing the Stage 1 calibration is changing the settings that were developed based on expecting a certain amount of air increase, but when leaving the stock intake in place it doesn't get that increase. This to me implies that it is now not tuned properly and that is not acceptable to me if true. I have no interest in dyno tuning to correct this. I would not have bought these if the information wasn't so ambiguous. This needs to be made clear from the factory.
    Asked by: Kell
    Hello Kell, Thank you for contacting the H-D® Online Customer Service Team. As much as we would like to help, we are here to assist our customers with any inquiries in relation to the H-D Online Store only. Although this item is on the online store you are looking for technical help and we do not offer that on this form. What we can do is direct you to our Customer Care Team at 800-258-2464 prompt #2. They will be happy to discuss your issue with you and provide assistance. Representatives are available Monday through Friday 8:00 a.m. - 6:00 p.m. Central Standard Time (CST). Sorry, they're unable to receive e-mail at this time. Thanks so much, The H-D Online Store Customer Service Team Harley-Davidson Motor Company
    Answered by: SoStreet
    Date published: 2017-12-15

    need HD tech ECM recalibration help

    so I bought the street canons and street tuner for my 2017 Road did the recalibration and said there is not one specific for just the mufflers only a Stage 1 calibration, even though I kept the OEM intake on. He said there is a broad enough range from the oem intake to the high flow stage 1 filter kits that the calibration will accommodate either..Is this right? sounds fishy, don't want to have a tune that isn't meant for my components..thanks
    Asked by: Kell
    This bike and engine are brand new so I suspect he did the best he could. The stock filter is 1/2 the size of the high flow that fits in the stock housing, but HD made it plenty big enough for this engine to breath. If anything you might run a bit rich and richer as the filter gets dirty. The Cannons are straight through but you still have a Cat infront of them. You also have 2 O2 sensors that the CPU monitors and makes adjustments. Usually doing just the exhaust or just the intake you wouldn't need a tune on any bike. Once the CPU has been programmed your stock program is lost so you can't put the factory program (stock) back in. (A dealer might) I did my Stage l myself and used the pro steer tuner myself. I saw no way to save the stock tune. All that being said I'd just ride it and check the plugs ina thousand miles. Ask Santa for the high flow intake for XMASS.
    Answered by: Pilgrim
    Date published: 2017-07-27
    • y_2018, m_2, d_26, h_20CST
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