Ok couple of small updates!
Things are moving forward.
Like I said earlier the other manufacturer's tubular manifold that was tried wouldn't work with, stock air box, york air compressors, etc, and we were unable to confirm exactly what material stainless it was. Since it is Chinese I am guessing 400 series, ok for places like CA/AZ but anything seeing salt, winters, etc it would end about like the EMS exhausts, just a little thicker.
So high quality 300 series stainless tubing, welded elbows, and flanges are already for the j-pipe. It will be 1.9" OD and 1.6" ID, so nice heavy wall stainless!
One other thing we are modifying is since we are keeping the stock airbox so that snorkels can be used and since we are using the stock MAF location, making it work with the york air compressor, and fitting everything else, the decision to not use a BOV has been made, since it would have to vent back into the system post MAF, and the system is going to be such low pressure and on an automatic transmission that is really not needed. We might still be adding a BOV flange to the charge pipe and cap it off for people that want to upgrade at a later date with a standalone, etc, but that has not been decided yet. So that might also bring the price down a touch more. This should be a very competitive system even compared to the Chinese systems.