I understand that the devils own water injection system is a well known kit. But I was searching on ebay and stumbled upon this kit

Click

Can I trust them? I mean this system is cheaper than any other and also includes the led light to tell you when it is spraying. I'm not too concerned about the tank for the "smurf piss", because I'm planning on running to the pick and pull and just get an oem tank to put in my trunk. Tell me what you guys think.

All of these kits are basically the same thing.
Read this thread from someone who bough that same kit.
http://mr2oc.com/showthread.php?t=288644

whats does a water injection system do exactly? Cool the turbo? Would it be a requiremnt on a turbo 7afe if im not planning on running anymore than 8lbs?

>
water injection helps in a few ways, it cools the intake charge, as well as cooling combustion chamber temps.
using WW fluid, its adds ~ 50% methanol, which adds octane.

required? no.
helpfull? yes.

my intake manifold stays ice cold with water injection. its kind of amazing

Yeah, after getting my car dyno'd and the exhaust done, its probably going to take a few weeks until I can have enough money to do the water injection.