[BiturboS4] what do you think of the sport valve?

[adam.schwartz at rcn.com]

Hey all,
has anyone tried this N75 sport valve?

http://www.ecstuning.com/stage/n75-info.html

People on audiworld dont seem to keen on it, but no one
actually seems to have any experience. They SAY things, like
they know - but I dont see where they have gotten their info
from. I am not saying they are wrong. I just dont see any
facts to back these things  up.

What say you???

-Adam