Sporter, be careful that the Ultraflow transverse muffler, like many others, is straight through and if you connect both sides to the same top or bottom inlet, you will not be able to get much exhaust out of it. In other words, you need to modify the pipes like we did with the crossflow PY sells. If you plan to use one, that would be the one to use and mainly because of the reversed orientation pipes.
Tom
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Tom Hand
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