Stage 2 MAF/MAP Water-Methanol Injection System

Here is a link to one of the best injection kits available. They say it DOES lower the intake air temps but I don't know how and I will not heard back until tomorrow as I have 9 people ahead of me. It could be possible to run higher boost than many of us are and not have things get really hot! $500. I will get answers tomorrow. So far I have these:
1. Lower IAT's-how?
2. Does the addition of the water/meth mix change the AFR's. I have the adjustable regulator so no big issue there.
3. Where would the nozzle for injecting the mix be placed. I am thinking but without the car here to look where it could be and feed both banks.

If anyone has a question place it here or PM me and I will ask it tomorrow. Mark

PS: this is a progressive kit that is controlled by the MAF/MAP sensor

Les thanks for the info on your example of water injection. The Snow kit seems to be the best in the industry. maybe this would allow stacked pulleys to work. I mean combo's like a 181/65. Very difficult to get that combo to run successfully but if it were possible it would add a decent amount of power. I might even change my stack to the 178/65 if this kit does what they claim. I don't know how it lowers the intake air temps? We will know more tomorrow. Of course running a stack like a 178/65 could challenge the SC and what it can take as it would be spinning way lover what I believe is the efficient range. Effectively raising the octane rating up to 25 points could help any amount of boost to run safer and cleaner.