How do they compare? I know that the turbonetics Garrett based turbos and the GReddy Mitsubishi based turbos are differen't design... so the numbers "T72" and "T78" can't really be compared. Is the T72 as powerful as the GReddy T78? How about lag? The GReddy T78 kit is appealing cause it's not too expensive, and it supposidly comes with everything needed to bolt it on. However if the T72 would have to be purchased seperatly, then a good manifold (HKS) and external wastegate (probally HKS), and custom oil and coolent lines would have to be ordered too. Just wondering which setup would give best results and be best for a streetable high HP car. I know a lot about the T78, just not too much about the T72. Thanks.