Has anyone taken the stock exhaust apart and removed the innards and us it as an expansion chamber? I am currently trying this with a old stock exhaust that I have and I intend to find a muffler to put on the snout of the exhaust to quite it back down. I looked inside of the "expansion chamber" of the stock pipe and couldn't believe what I found......a perferated outgoing pipe, a solid return pipe and 4 baffles........how is that supposed to work as a expansion chamber when it is full of stuff that will not let the sonic wave move back and forth! It is just a 4-stroke exhaust slapped on a 2-stroke!
