Thoughts on the Yoshimura RS-3 Comp Series

[HondaEXrider22]

Anybody out there have any thoughts or comments on the Yoshimura RS-3 Comp Series Full Pipe for the 400EX? I was thinking of upgrading from my ESeries slipon.

Noticable difference in power?
Sound?
Throttle response?
Will I have to rejet if I already did for the ESeries?
Better than the Eseries with a powerbomb header?
thanks for the help.

[HondaEXrider22]

Anybody?

[mojavedude]

i have one on my kfx but i cant tell you the gains because it came on there. some people say its more of a top end pipe. its high quality though but the price is up there. i have some sound clips of it.
http://youtube.com/watch?v=Tu7oU3d3TYk