Is this a crock of you know what....or what?

Boy go fast says he is selling a 66cc engine with a catalytic converter. The muffler looks the same as a regular muffler.

Anyone know the real deal?

I'm kinda skeptical on this one, since he lists 49.99 shipping but the top of the description says 54.99, plus a lot of other discrepancies in the item description.

Enlighten me.

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If it ain't broke, and you mess with it long enough, it will be.