my 2 cents on the subject.

[bigbad400]

well the claim is that it curves the air flow and advances the power output, but as long as they didnt change it to slow it down then it would work, gains cant be much but maybe 15 percent, but hell 15 percent on top of all the other mods available may be the little bit more we need right guys? anyone run one on a 400ex whats the gain like?

[big95xj]

It may know what "it" was...

[Drewltr450]

what???

[04TRX400EX]

Ummmmm, you're going to need to specify what "it" is that curves air flow (I don't know how that's possible but whatever) and advances the power (advances like advanced timing?).

Thanks for your $0.02 but it's not helping anyone else.

[bigbad400]

sorry dudes this was supposed to go on the Powernow forum and it somehow made its own. sorry to confuse everyone. if you look at the forum that said something about the power now and plus and powershot youll get it. its in powertrain.