125-200cc wr 125 pipe and silencer on a 250?

Maybe a stupid question, but do wr 125 and wr250 use the same pipe and silencer?
Or is the 125 pipe smaller?


Tnx for help.

WR125 pipe is much smaller than the WR250/300 one. Up until '08 model, they shared the same silencer.

Ok, yeah. Thought the pipe would be smaller, but was more unsure about silencer.
How do you think a oem silencer on pro curcuit pipe will affect the bike?
Running a shorty thingy at the moment, bike has allot of low end grunt. But its so loud, and not everyone like to hear the sweet sound of a 2-stroke. :P
If i manage to fit the oem-silencer on, radiatorhose or something. Will the bike still be loud, even if i dont rev it to much?
And how will it affect the powerband? More lowend grunt, and less on the top?