Hydrogen Fuel Kit producing HHO does work. I have fixed 2 units into my Toyota 4AGZE supercharge and also my Toyota 1GZE Supercharger and had been using it for 2 years already. I am attaching photos but dont know whether it will be in here. I sold a few units but because you need to clean the bottle and change water once a week. my customers are lazy. After awhile they just took them off. It is more convenient if it is fixed at the boot and channel the HHO all the way to the front. Opening the boot is easier than lifting the heavy & hot bonnet.
The benefits are as follows:-
1)More power for sure 2) fuel economy ( exceptionally good for carburettor car) 3) engine runs slightly cooler. It safe fuel only for car with oxgen sensor (at the exhaust manifold).
For fuel injection model like Wira, SEG Corolla which doesnt have oxygen sensor, it doesnt save petrol, but power is still there.
Dont buy those expensive kit which add a lot of other things making it very complicated. Just RM200for a simple kit will do. Those come with stainless steel container costing thousands is a sure waste. It is already a failure in Australia. I have stop selling them anymore but only for my own use. I still have 1 or 2 left for sale. Tel: 0122075228