I have the FS1
Which was/is also for HHO and gas savings without HHO.
With just the FS1 and NO HHO, I'm seeing a 13% improvement in mileage.
I have not finished making my cell. Anyway I want to get a good mileage baseline before installing the HHO cell.
It is building up slowly. I put it in on Aug the 21 so it's been a complete
week. Dan the owner advised me It will continue to improve.
I saw the new one It just came out this week, wish I knew it was coming out. i would have gotten the FS2.
Glen
Mother Nature educates all of us that are teachable. She's hardest on the ones who refuse to learn. Punishment is automatic, immediate, and without pity.