You will have those issues no matter what you get unless you get something expensive like Delkevic. Any other muffler not specifically made for this bike will require additional pieces. With that said, you can look into modifying the stock muffler temporarily. I removed the baffle with a basic hole saw bit and rejetted my carb. It's not ideal but it's far superior to stock sound. It can be a little annoying at 70mph though. This could be a cheap temporary solution until you can get the parts necessary. There are other methods to modifying the stock muffler as well which include drilling holes instead of removing the baffle all together. Try that first, may be a better sound than removing it entirely. At least temporarily.

Here’s a link to my recent installation.  There is also more information and other methods on how to mount the Dyna muffler in the Tech Section.  

My install —> http://suzukisavage.com/cgi-bin/YaBB.pl?num=1726756292

You will only use one of the mufflers.  Don’t worry about the mounting rod used on an actual Harley.  See the muffler I listed for sale.

You will need a few other items to complete the installation.  I included links to some of the items and referenced others.  There’s a couple other things  like channel bolts, nuts, and washers.  And you may need a new gasket that goes between the header exhaust port and header pipe (depends if yours is still in good shape or already trashed).

The last Dyna I sold went from here (Houston) to Alabama.  FedEx 3-day shipping was $6.99 using my discount shipping app.  Dyna + Shipping was total $52 for the buyer.  That’s pretty close to what you would pay for some unbranded and unproven muffler shipped from China via Aliexpress.

The extra things you need will run about $30-$40.  See the links in my installation post to see a few of the extra items. I didn’t list links for the fasteners I bought at Ace Hardware.  The exhaust coupler I used to connect the header pipe to the dyna muffler came from Autozone (like $4).

PM me if interested.  You may have to have 10 posts to message me.  I can try to message you if that’s the situation or you can keep posting questions or commenting around the forum until you hit 10 posts.  (I’m up to like 1500 posts/comments.  It isn’t hard, but I know I’m annoying sometimes.  lol)