This is the reason why no one really talks about this. As the options are slim to none, so all you can do is wait. The difference in results from developed race turbos from companies like garrett and borgwarner, is night and day. It really is that much. But these are turbos you can't buy, and rarely even see. The turbos they release are just generic sizes and styles. Its up to the consumer to decide what works and if its up to their standards, although borgwarner seems miles in front in this regard. But again still generic. I don't have any problem with UFI or P4x4 etc, but you simply can't compare. Gturbo in my opinion is the worse of all, yet talks the most hype.I would rather buy one that has all the research and development done rather than do the testing myself. You seem to make a point about GTurbo not being developed properly, so what turbo would best suit my vehicle, (with the list of mods above) that will need the least amount of modifications? Surely there must be at least one supplier that has something close to what I want out of the box?