HydroClubUSA Volo Electronics

The real deal. There are too many fake cheaper modules, or chips out that do absolutely nothing. This one works! I have installed, and programmed the Volo chip for performance. The car is way faster off of starts, and has more power in the mid to upper torque range. Try it, you won't be disappointed.

I researched this product - before I bought it (recommended by an independent source).And I’ve been very pleased with it too! It’s very easy to program/install.

Good

I hace sabe 10 % on my hho system nissan almera 2002

Simply put, this thing is just a placebo which makes you think it does something, but... I drove with it for a long time, noticed no difference. Then took it off when I needed OBDII for the scanner, and forgot to put it back. No difference at all. Same, if not better MPG. Same acceleration. It even seemed to be that without this chip, it shifts less erratically. Well, if you think that a $100 device can outperform professional scanners or tuners which cost many times more (by being able to change fuel maps for the engine in real time), you should think again.

It's not working with GM motor.Good for simple engine, no mass air flow!!

I don't know what this does but it will give you at least 2mpg less fuel economy. Once you remove it you can' get back to original mpg that you had before putting chip on. It changes your vehicle cpu for the worse. I have contacted them and no response..