China Motor Stock Muffler Mods

Quanah

Quanah

New Member
Has anyone cut apart one of these stock mufflers? I was wondering if there are more baffles inside, or what you see when you remove the end cap is all there is. I stuffed a little steel wool in the end of mine a few days ago, to try to quiet it down a little...which it did. I can't tell of any power loss. I've heard of people drilling holes in the end cap, or maybe the stinger pipe on the inside of the muffler. Does anyone else have any modifications to try to get more power from these restrictive pipes?
 
Cut off the inner pipe to about two inches for stage one, remove it completely and open up the end stage two, and gut the muffler completely for stage three.
 
What I would like to achieve is power gain, plus quietness...two things that don't necessarily go hand in hand. Thanks for the reply maniac57.
 
Quanah said:
What I would like to achieve is power gain, plus quietness...two things that don't necessarily go hand in hand. Thanks for the reply maniac57.
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Get an expansion chamber exhaust, they do both, as much as a half horsepower gain.
 
I'd like to put on a chamber, but it would look out of place on a board track themed bike. Maybe "Function before Fashion"would override here.
 
Hide the cone in a shroud, like a copper tank somewhere up front or some type of box maybe?
 
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