One thing I did after this was cut it off again and then turn it into a straight through muffler. This mean getting a hammer and a bit of wood and smashing out the 'box' type muffler thing inside the muffler. I then used this steel mesh stuff, rolled it into a cylinder, put it in the middle of the muffler with pink bats as packing, and welded the ends up again. It made it louder (which wasn't the purpose) and made the muffler far less restrictive for exhaust flow. Power wise, I dunno maybe it did something. Pretty hard to tell the difference between 12hp and 13hp really haha. I use a different muffler now because the stock one doesn't fit on my new frame.
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