Been there done that, except I had two days worth of crappy A$$ live tuning that did nothing but smoke and make average power at best. Got every glow plug code known to man at start up. Was promised revisions...yeah right...left tons of voicemails, messages with the ones that actually answered the phone, and sent tons of unanswered emails. And they had the balls to charge me 5 times what you paid. DynoProven can go straight to a nice warm place below as far as I'm concerned. And trust me, there is a LOT of us that's been done this way. I know, I've talked to many many of them.