to remove the clamp from the body, you either have to split the body halves, or cut an access hole like the one seen here in big 5 (note: this access hole existed long before H-Mike owned 5 and he probably would have done it in a much more un-hack-ified manner... like a hole saw???)
If you have no plans of reusing the clamp, you can remove the muffler, then cut the head off the bolt holding the clamp, and push the remaining bolt up and out, then tip the body backward and it will slide to the rear and fall into the bottom of the tub.....
either way, unbolt the clamp from around the muffler, remove the bolts on the inside of the tub and the muffler will fall right out. Ok, that's a lie. that's how it would work if new, however a machine that has been run will have all kinds of packed dirt, corrosion, and some melted plastic keeping the muffler from just falling out. some force is usually required! The one in my Wild Wolf required considerable force, and eventually I heated up the plastic around the bolts to help ease the process.
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