I don't really know to much about these things so I thought I would ask. I have a chance to buy an electric water pump for my car for dirt cheap. It's a Meziere and they say it gains like 10hp. I've never had one before so I wanted to find out a little about them. I was going to do my exhaust first but if this thing is proven hp I would rather do the water pump. What do you guys think of these things? How well do they work and how do they work?