I got my Vortex last week and have raced last saturday. Though I came up in 2nd they really improved the Hp on my YFZ. The Vortex has 10 setups. The first 3 are for stock YFZs, the last 2 are for YFZ's with the YZ cam mod, and the rest are different race setups from Vortex. My YFZ has a Yoshi titanium complete exhaust, no lid, DSP valve, YZ cam mod, and the feel before the vortex was installed was that it hit the ceiling of the RPM very easy so I had to gear up. Now, it just doesn't have a RPM limit. It also revs much quicker. If any of you guys get it, try the setups between 4 and 8. One more thing, it is well worth the price tag.