[8695Beaters]

For Cali I'd stick with AEM. Much easier to pass smog inspection. It's a little more, but worth the hassle.

Heard of the tornado thing. Never heard about anybody doing any testing with it though. I doubt it will do anything, since it's creating a flow restriction in the intake. The engine has to do work to spin that turbine and it isn't compressing any air, just spinning it. Get some good iridium spark plugs instead and add some power and mpg.