Thanks for the compliments everyone! We've been working on this thing for a while now and we're pretty confident it works as advertised.

To answer Tom's (warmonger) questions:

As to the heat shield being a restriction -
The heat shield like I mentioned in my first post is sealed on four sides, but open on the fender side. I think I should clarify that the heat shield does not have an air tight seal with the fender/fender draw. Due to variances in MAF and intake tube setups between the SVT, normal Duratec, and aftermarket ones available (BAT, CTA) we decided to leave some space between the fender and the shield. We had to make sure it would fit a majority of the set-ups out there. The gap is mostly on the front and rear sides which are pretty well shielded by the fuse box and drivers side shock tower. This allows plenty of air to reach the filter but our temp testing shows a majority of it seems to be from the fender draw.
Here's a pic that shows the gap I'm talking about.

Having the bottom sealed is the key as the hot wash from the radiator fans and other hot engine bay components is blocked.
Again, as mentioned earlier a cold air tube makes this setup even more effective. Opening the fender up would be a good idea, but I'm warry of recommending it as it's not easy for most people to accomplish and the possiblity to do more damage than good is there. I'll let others experiment with this.

As to why our setup is better than the SVT setup - it allows the use of a better breathing, larger area filter. The stock SVT system is nice but the stock filter size is too small. Our heat shield allows the use of a larger better breathing aftermarket filter without having to deal with boggy throttle response when the radiator fans kick on and wash hot air right at the filter or temps climb.

As to high RPM HP loss, I was also concerned that enclosing the filter too much would hurt. The original prototype used a more open design for just this reason. But back to back testing has shown no loss in performance with the final version and better temprature control esp. when speeds are slow (i.e. traffic).

Thanks for the comments - keep them coming!