I've been reading up on it a little. The only evidence that I have seen as to how effective it is is the intake temps 1 & 2. They drop DRAMITICALY, but I have yet to see dyno's.
It does exactly what they claim it will do, put your IAT2s in the basement. It's up to your tuner to take advantage of the lower charge temps in the interest of power.
it taps into your a/c system? not sure if i like that...apparently, "in-cab" temps are raised. being in vegas, might not be for me..too hot. maybe some other of you guys might benefit tho. :shrug: