Quote:
	
	
		| Originally posted by mmm3587 I have read that all Harleys come from the factory with nice, quiet, non-polluting legal exhausts which meet federal standards, which are then immediately removed and discarded by the dealers in favor of the loud, polluting exhausts that people actually want.
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 No.  You generally don't touch the factory mufflers at all.  You burn your exhaust valves out if you do.
The factory mufflers are loud - very loud - but just inside the noise limits for all states.  (You won't pass the "hospital zone" kind of limits, but . . .)