awhile back someone posted some info and graphics of a 400ex stock silencer that they reworked inside if you could please repost them. i tryed search but couldnt find it.tks

 

The title was something like internally deristricting or something like that. I printed it and plan on doing it too, now that I have a 400ex. Try searching internally it should work.

 

That was my post. Give me a second to find it...

 

Click Here for my post. I've done some more work on it since then (all holes go through all three plates now), but it gives you the basic Idea.
Also, Click Here for some pic's of a similar setup owned by Gabe who no longer visits these forums on a regular basis.

 

thanks guys that was exactly what i was looking for.

 

250rampage did you have to rejet after modding pipe?

 

Yea, along with trimming the intake snorkle at the end, I took it up to a 150 main jet...i think