i was reading about holsets and i found Your post:
"' Catcams Second mild cams.. (no extra duration, mainly more lift.. No big difference)
38 mm(out) exhaust manifold. I sold earlier 42mm version to Vigge, who want 42mm for his 2.3 engine. (currenly have had 3 manifolds in my current hw for testing and developing reasons with different shapes and diameters, pics available) '"
maybe You still have any old manifold to fit holset in 1999 year saab 9-3 b204 engine and if yes would You like to get rid of it for some money ?
few weeks ago i found hx40w on ebay for 100 euros and i am looking not expensive way to fit it .