wah been 10 months i have not check up on this topic, anyway, to update you all, i have NOT quit on this yet even with the first try failure. We learn from mistake. What doncityz mention is true, my previous (1st model) was drawing too much power from the alternator thus engine lack in power. I think i am drawing near to 20A. Which is so wrong. Anyway, I found a friend who made few sample for me to test and its drawing around 5 to 8amp and so far, power and fuel saving is noticeable! I am planning to fit a PWM (i have this for sale too) to boost up the performance from 5A to maybe 10A or 15A max since i drive short distance and it takes time to warm the HHO unit to achieve enough gas. Once its up and running, can lower down the current and cruise nicely. Will post more details when i am back from outstation.... I am sure some bro have this project still going on... please post up and lets share the knowledge... cheers~!!