Haha very funny, I'd never buy a tornado for my car. I am buying an intake tube though.
As far as the Dyno I don't know, I saw the charts but also looks as though the guy had Magnaflow exhaust on it. It had the 1st Gen LS vs the 2nd Gen LS in graphs that compared torque and hp.
And my buddy's Tundra squeels after take off (when you left off the gas, whatever) Kinda like the sound you get when you let a little bit of air out of a balloon.
You can also do the mod on here where you cut the bottom of the box out or cheese grade it/drill holes all over it. But thats if you are willing. Sounds like you want it stock for warranty issues maybe?