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I am using it and consider it to be a great product for the money. I bought mine on ebay a few months ago for around $65 but now I see its a $75 or best offer. Unit does everything it says it does...

I am just trying to finalize my design before I order my plates. It's cold here in Michigan so install will have to wait for spring. Don't worry we on the forum will be supporting you!:D

onlinefreetrader was the name. Just get on ebay and search digital efie, as i think he is only one selling this type. Works really nice and u can hook meter up to set increases, decreases, etc.

I got a digital efie from ebay and am very pleased with it. I hooked it up in about an hour and it very easy to use. Paid about $70.

You might have missed my post 597 on this thread for software. This might help you!

Painless I have followed you since the beginning of your trek to bring HHO benefits at the least cost. I think its time you invested in NICE FLAT PLATES! SCM has a price list available which you...

I also have the wall plates from lowes which I use for test purposes on the workbench at the moment. I found that if you have a short the cell will not draw amps (in my case was stuck at 12 amps) I...

I ran across this in the www.h21o.com forum and thought you might be interested in it.



Free OBDII/CAN diagostic software. All you need are cables.
OBDII/CAN software that you can use to...

I see you found a use for the wet bath pelican case!:) I too have a case with holes on side with no further use for it (never could get it to seal.

I need some advice on how best adjust dual efie. I have a digital dual efie I bought on ebay and have installed and tested connection so that I know it is hooked up properly. I have been told a .200...

I have a 99 f250 5.4 and recently installed a smack design unit producing .8 lpm at 18 amps. I saw a quick jump in mpg to 19 from 12 but over time it dropped back to my initial 12.5 mpg. I have tried...

o2 extenders did nothing for me but set cel's. Drilled both extenders to 1/2 inch on end and then made a little bigger to no avail. I have now ordered a digital efie and will be installing that

Muskegon, Michigan
:)

You need 2 for the o2 sensors before cat.

obd II has gotten smart to my smack unit and my mpg has dropped to 14.5 mpg. I'm going to start with o2 extenders and see if that helps. Electonics is not my bag so don't know what else I can do on...

I just took cell apart and will wrap edges with tape. I can't believe the double gasket spacing (80 and then compress) would be too much different than my 62.5 spacing smack unit but will go back to...

I built a smack unit for myself and have it installed in my f250 truck. (1lpm) After seeing your 25 plate design my son inlaw and I decided to build one. Our problem is sealing the unit up using the...

I just did my first 40 mile test of smack design booster i built and can't believe the results. My truck has always gotten 12.5 mpg so i was hoping for maybe 15 with the smack but guess what, I am...