Site looks nice.
Not one dyno plot. No tech data on measured heay reduction.
Nothing but testimonials.
I never believe anything that relies solely on testimonials. Gie me real data. A Dyno before gasket, a dyno after gasket. Intake air temps measured in the manifold.
If any of you guys heard of Smokey Yunick, he turbo'd a chrysler/mitsu engine in an Horizon, but actually heated the intake air to over 400 degrees and dyno'd insane horsepower out of it. More than he would of with an intercooled setup. He did have other changes, but the Mech Engineers among us can see how (using heat balance) recovering the heat eneergy of the exhaust to preheat the intake air is more efficient then throwing the heat away.
Scroll down past the links :
Hot Vapor Cycle Engine He has a patent on it.
While the industry didn't take to it, and the pollution requirements of today amkes it obsolete, it does put a wrinkle in the claim a cold intake gets the most HP.