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 getting 19.9 MPG with no mods to engine. Booster isn't even broke in yet.
Running at about .8 lpm at 22amps. (I was too lazy to sand plates and indent them (but i will now!). THANKS SMACK