Dyna switchback vibration fix

Borrowed this from somewhere else.

As most of you know the dyna switchback has a noticeable vibration around 2800 rpm's.. There is a harley bulletin out about it . Here is a link to that bulletin .. https://www.box.com/s/15d6d8edf75569ee6c4f . However the reviews have been minimal improvement .. After a lot of searching the internet and research , the problems seems to be in the exhaust setup .. Aftermarket exhaust seems to get rid of the vibrations . However at $500 to 1400 bucks , It is not an option for everyone .. Should this be a warranty issue .. YES . If you complain enough and take a copy of the service bulletin , you can get your dealership to address it but as I said the results were minimal in my research.

But don't give up yet . Here is what I have done and the results were great. Virtually eliminated the vibration .

First a little background on the bike setup
I have the factory headers with the cat "drilled" , not removed yet . I have a vance and hines twin slash slip-on that I upgraded to at purchase . Just as a note , the vibration was still there with the slip on

I am also running a gen 3 but that didn't help the vibration issue either ., But i do recommend it as an upgrade .

The fix

The problem is in the factory mount setup . Some of the aftermarket exhaust are
replacing one of the mounts too.
Before you do all that try this ..

loosen the bolt on the slip on muffler and right behind the slip on is a mount bolt 1/2" socket will fit it remove this bolt . you will notice it is a slotted hole. then loosen the nut at the back of the exhaust almost all the way off. . Pull the slip on muffler back until the slot in the center mounting bolt is centered . now tightened the slip on muffler clamp .. Put some blue locktite on the center mount bolt and screw it in about halfway .. Do NOT tighten .. put some blue locktite on the rear mount stud and start the nut .. again this is 1/2" wrench Start the bike and tighten the rear mount bolt up snug turn off bike . Go to the center mount and tighten it down until it touches and back off one half of a turn . Let the locktite cure and you are ready to go ..

The above procedure made a world of difference on my bike .. Hope it does on yours too

Just as a note , I did not do anything that the service bulletin said to do because it was not fixing the issue .