I think the numbers can vary depending on model, country, and maybe even state. If you have an image, you could post it here. We might be able to tell from that. If they are from a Dyna, and have a rail then you're probably in pretty good shape.

There are a number of ways to fit the Dyna. It's worth a look around the forum. Adapters aren't always as simple as they look. Sometimes you have to cut an inch off the header pipe, and sealing them can be fun! The Dyna is not a direct fit. First of all it's imperial where's the bike is metric. There's also an angle on the end of the stock muffler that isn't on the Dyna. It's a great muffler for this bike but takes a little finessing to get it mounted leak-free.

I used a method from this forum to make my own gasket from a ribbed tin can and got the Dyna to fit directly onto the header. It still takes a bit of wrangling. Had to rotate the header slightly and could only use one mounting bolt for the muffler. It took me a couple of goes but very happy with the result (no silicon or cement, and left the header intact). Then I bought a 4" heat shield to cover the clamp.

If you haven't already, it really is worth reading some of the threads about the Dyna ☺

How much for a pair ?

Eegore wrote on 08/25/17 at 21:39:22:



Bought new it on Ebay. Came packaged as Emgo. 2" diameter x 4". I squeezed it to wrap around better. Bought a smaller hose clamp too. It only had one attachment point so I stuffed a little packing under to stop it rattling. Fur tat, I used a snippet of leftover fibreglass rope that seals a wood heater door.

I paid $60 for both mufflers, which was the best deal I could find locally. One muffler is perfect, the other has a slight scuff. I plan to buy a cobra heat shield, but I am still thinking about an adapter or the "can method" to get the Dyna muffler to fit the Savage exhaust pipe.

Maybe the Ryca adaptor might work , IDK , I'm sure someone here knows !

Is that the one?

 http://shop.rycamotors.com/exhaust_adapter.html