Just bringing up that it may be best to chat with people that made the kit work successfully. Sounds like you had issues with it, whether that was due to early revisions of the kit or install/tune/etc issues I don't know, but you do like to bring it up in every thread with "I threw mine away" even with people showing the kit seems to work now.
I shouldn't even be posting in on3 threads because I run and try to rep another manufacturer's kit, but I do try to be honest with what I've seen Jon do with is On3 kit. There is no magic, smoke, or mirrors, but the stuff Jon works on usually ends up working extremely well, that is where/why I mentioned "competent people". I know his ability first hand, which is more than competent, and I'm sure that helped on the install. A little tweak here or there may be needed but the user/installer has to understand that going in. If they are willing and able to do that, then it works. Maybe you overcomplicated things with the water cooled turbos, maybe the tune had problems, the transbrake for the 6r80 wasn't out yet, etc.
Not trying to piss anybody off but when you make statements like this, maybe you aren't the best reviewer of the kit: If you admit you are not a turbo expert, think the pipe is not enough to support the airflow (it's big enough to support 8.86 and 157mph with the upgraded maf), and you think you are having major backpressure issues (did you measure it?), then that is where questions come into play. I do agree, the MAF would be nice in the outlet of the IC and would then save money of having to buy the upgraded MAF.
That is the long version of what I was getting at