They are good blowers they just do not put much boost with them out of the box. Pulley them up and they perform just as good as the others.

I don't think the eForce could have as much top-end potential as others with the long runner design with equal boost to a Whipple, KenneBell, or Roush.

I would be curious to find out.. Keep in mind, the dyno they used is a load bearing dyno so the numbers will be much less then say a dyno jet. Also they just used the generic cann tune that is included with the blower kit. We have seen as much as 80 hp to the tires with our custom tune over the included tune. That is keeping everything the exact same except the tune!