i have been in contact with Lance at
http://www.JGStools.com and have been asking about their DIY turbo header ktis and their plans to develop one for the CA18DET (as you can tell i am really looking into the manifold thing) and he says that all the needs is an AutoCad file fo the flange that bolts to the head (for the manifold obviously) and they can have them cut, and have header ktis available, and also make custom headers (equal length, shorty, tuned equal lenght) or you can ahve them made yourself by jsut buying the flange, 90* 304SS bends and the other flanges etc...
so i jsut want to see who would be up for this, this means you cna fit any turbo, andy wastegate you want
(at the sacrifice of some back presure, log manifolds arent the best breathing manifolds)
anyone have AutoCad and can send me/him the file, i dont have my manifold here at work and i cant get it done till monday.
later