I just got a Mudbuddy 45 mag a couple months ago and I'm wanting to put on either a single crossover ss or a marshmellow double barrel x. I plan on gettin a single mikuni carb in the near future too. Just wanna know your preference also any differences in performance between the two and durability. Thanks Nate

The 45 mag doesn't come with a performance exhaust already? The x-over would be the best for performance, but the mm is also a great muffler. I'm sure you can search a few topics where this has been discussed already as well.

I bought it off a guy who had the Q exhaust on it. I looked for awhile but couldn't find anything quite enough.

If u looking to gain only 1 more mph with more noise then the crossover but the Q is a good performer without the noise level!!!!