Yes it is.
I have spoken to turbotechnics today and the vnt's do sound ridiculously good .
Essentially the same compressor map as gt28r with spool up from idle speeds . Expensive enough to buy but that's okay . I'm more worried about the mapping costs as I would Imagine there is little to no experience with these . However I can only see the roller bearing turbos on gt25r or larger and I'm worried about losing low end boost . There is a guy on fordpower called Gengis who's achieved good things but i think perhaps the turbos are too large .
See here http://www.fordpower.org.uk/forum/in...showtopic=7969