Need info on yosi off-road seris ASAP

[250Xtreame]

How is this pipe for a 250x? I've heard them on craptors and 400's so the sound should be similar right? Well any way how the hsp gain?

thanks
ryan

[Buzzsaw]

I've got one on my 316 but I can tell what sort of gain i got just from the pipe. Had alot of work done at once motot work and pipe, but i love my yosh.